Liquid Density Lookup
Search, filter, and compare density values for over 50 common liquids. Use these values for accurate mass ↔ volume conversions.
Most Common Liquid Densities
Explore density values for the most frequently referenced fluids across everyday life, science, and industry.
Everyday Household Liquids
Household liquids span a surprisingly wide density range. Water serves as the universal baseline at 1.000 g/mL (at 4°C). Cooking oils like olive oil (0.918 g/mL) float on water, while viscous syrups like honey (1.420 g/mL) and corn syrup (1.380 g/mL) sink rapidly to the bottom.
- • Pure Water: 1.000 g/mL (1000 kg/m³)
- • Whole Milk: 1.030 g/mL (1030 kg/m³)
- • Olive Oil: 0.918 g/mL (918 kg/m³)
- • Pure Honey: 1.420 g/mL (1420 kg/m³)
Industrial & Laboratory Liquids
Laboratory solvents and industrial chemicals range from ultra-light volatile organics like diethyl ether (0.713 g/mL) and acetone (0.784 g/mL) to heavy mineral acids like sulfuric acid (1.840 g/mL) and liquid metals like mercury (13.534 g/mL).
- • Ethanol: 0.789 g/mL (789 kg/m³)
- • Sulfuric Acid (98%): 1.840 g/mL (1840 kg/m³)
- • Glycerol: 1.261 g/mL (1261 kg/m³)
- • Mercury: 13.534 g/mL (13534 kg/m³)
Why These Liquids Are Frequently Searched
Engineers, culinary experts, pharmacists, and chemistry students search for liquid density values to convert volumetric measurements (milliliters, liters, fluid ounces) into precise mass measurements (grams, kilograms, pounds).
⚡ Interactive Liquid Quick Inspector
Select a liquid to view instant physical properties and quick mass calculation per 250 mL container.
| Liquid ↕ | Density (g/mL) ↕ | Category | 100 mL = ? g |
|---|
Compare the Density of Common Liquids
Understanding how liquids group into density tiers relative to water allows rapid estimation of flotation and fluid displacement.
Liquids Lighter Than Water
Any liquid with a density less than 1.000 g/mL will float on water when insoluble. Organic solvents and plant oils dominate this category due to long hydrocarbon chains that occupy high volume relative to atomic mass.
- • Diethyl Ether: 0.713 g/mL
- • Gasoline: 0.748 g/mL
- • Ethanol (100%): 0.789 g/mL
- • Canola Oil: 0.915 g/mL
- • Olive Oil: 0.918 g/mL
Liquids Similar to Water
Aqueous solutions, milk, juices, and dilute organic acids hover near 1.000 g/mL. Slight additions of sugars or salts elevate density slightly above 1.0, while mild alcohol contents reduce it slightly.
- • Red Wine: 0.990 g/mL
- • Pure Water (20°C): 0.998 g/mL
- • Vinegar: 1.006 g/mL
- • Seawater (3.5% salt): 1.025 g/mL
- • Whole Milk: 1.030 g/mL
Liquids Heavier Than Water
Dense syrups, polyols, concentrated acids, and halogenated solvents sink to the bottom of water containers. Their dense hydrogen bonding or high molecular weight atoms pack heavy mass into tight spaces.
- • Glycerol: 1.261 g/mL
- • Maple Syrup: 1.370 g/mL
- • Pure Honey: 1.420 g/mL
- • Chloroform: 1.489 g/mL
- • Sulfuric Acid: 1.840 g/mL
Quick Density Comparison Table
| Liquid Name | Density (g/mL) | Density (kg/m³) | Behavior in Water | Primary Category |
|---|---|---|---|---|
| Diethyl Ether | 0.713 | 713 kg/m³ | Floats (Fast) | Chemical Solvent |
| Gasoline | 0.748 | 748 kg/m³ | Floats | Fuel |
| Ethanol | 0.789 | 789 kg/m³ | Mixes (Miscible) | Alcohol / Solvent |
| Olive Oil | 0.918 | 918 kg/m³ | Floats | Cooking Oil |
| Pure Water | 1.000 | 1000 kg/m³ | Standard Baseline | Water |
| Seawater | 1.025 | 1025 kg/m³ | Sinks below pure water | Aqueous Solution |
| Whole Milk | 1.030 | 1030 kg/m³ | Sinks / Mixes | Dairy Product |
| Glycerol | 1.261 | 1261 kg/m³ | Sinks rapidly | Polyol Chemical |
| Honey | 1.420 | 1420 kg/m³ | Sinks to bottom | Viscous Food |
| Mercury | 13.534 | 13534 kg/m³ | Heavy Sink (Sinks Iron) | Liquid Metal |
🧪 Interactive Fluid Stratification Tower Simulator
Click on fluids below to build a layered density column in a virtual graduated cylinder and watch them arrange strictly by density!
Density Comparison Chart
See how different liquids stack up by density
Click any row in the table above to highlight it in the chart
Density Changes with Temperature
Temperature plays a fundamental role in liquid density measurements. As thermal energy increases, molecular motion forces liquids to expand.
Why Temperature Affects Liquid Density
When a liquid is heated, its molecules gain kinetic energy and vibrate more vigorously, creating larger average distances between adjacent molecules. Because mass remains constant while volume increases, density (ρ = m/V) decreases. Conversely, cooling a liquid contracts its volume and increases its density.
Density Values at Standard Reference Temperature
Most international chemical handbooks and density tables report values measured at 20 °C (68 °F) or 25 °C (77 °F) under standard atmospheric pressure (1 atm / 101.325 kPa). Pure water reaches its maximum density of exactly 1.0000 g/mL at 3.98 °C (39.2 °F) due to its unique hydrogen bonding lattice anomaly.
Water Density at Different Temperatures
| Temperature (°C) | Water Density (g/mL) | Density (kg/m³) |
|---|---|---|
| 0 °C (Solid Ice / Liquid Water) | 0.9998 g/mL | 999.8 kg/m³ |
| 3.98 °C (Max Density) | 1.0000 g/mL | 1000.0 kg/m³ |
| 15 °C (Standard Lab) | 0.9991 g/mL | 999.1 kg/m³ |
| 20 °C (Room Temp) | 0.9982 g/mL | 998.2 kg/m³ |
| 25 °C (Standard State) | 0.9970 g/mL | 997.0 kg/m³ |
| 50 °C (Warm) | 0.9880 g/mL | 988.0 kg/m³ |
| 100 °C (Boiling) | 0.9584 g/mL | 958.4 kg/m³ |
Why Engineering Tables Use Standard Temperatures
Without standardized temperature benchmarks, chemical custody transfers, fuel metering, and pharmaceutical batching would suffer severe accounting errors. For instance, gasoline expands by approximately 0.1% per 1 °C increase; buying fuel by volume at high temperatures delivers less physical mass than at low temperatures.
Density Units Explained
Density can be expressed in metric, imperial, and specialized engineering units. Master each unit and learn how to seamlessly convert between them.
g/mL
Grams per milliliter: The default standard unit in laboratory chemistry, microbiology, and pharmacology. Water density is conveniently ~1.000 g/mL, making calculations intuitive.
kg/m³
Kilograms per cubic meter: The official SI base derived unit for density. Used in physics, chemical engineering, and thermodynamics. Multiply g/mL by 1,000 to get kg/m³.
g/cm³
Grams per cubic centimeter: Numerically 100% identical to g/mL, because 1 mL is defined as exactly 1 cm³. Commonly used for solid materials and geology.
lb/ft³
Pounds per cubic foot: Traditional US customary / Imperial engineering unit. Water has a density of approximately 62.43 lb/ft³ at room temperature.
lb/gal
Pounds per US gallon: Used extensively in commercial liquid transport, paint manufacturing, and fuel delivery. Water weighs approximately 8.34 lb/gal.
How to Convert Between Density Units
To convert from g/mL to kg/m³, multiply by 1,000.
To convert from g/mL to lb/ft³, multiply by 62.428.
To convert from g/mL to lb/gal, multiply by 8.345.
🔄 Universal Density Unit Converter
Enter any value and pick an input unit to instantly calculate equivalent values across all 5 standard units.
Density vs Specific Gravity
Although closely related, Density and Specific Gravity are distinct physical concepts. Learn when and why to use each in scientific calculations.
What Is Density?
Density (ρ) is an absolute physical quantity defined as mass per unit volume (ρ = m/V). It always carries physical units such as g/mL, kg/m³, or lb/ft³, and directly measures physical compactness.
What Is Specific Gravity?
Specific Gravity (SG or relative density) is a dimensionless ratio comparing a substance's density to the density of pure water at a reference temperature (usually 4°C or 20°C). Because it is a ratio of identical units, SG has no physical units.
Density vs Specific Gravity Comparison Table
| Feature | Density (ρ) | Specific Gravity (SG) |
|---|---|---|
| Definition | Mass contained per unit volume | Ratio of liquid density to water density |
| Measurement Type | Absolute property | Relative dimensionless ratio |
| Units | g/mL, kg/m³, lb/ft³ | Dimensionless (Unitless) |
| Water Value at 4°C | 1.0000 g/mL (1000 kg/m³) | 1.0000 |
| Primary Application | Mass ↔ Volume Conversions | Hydrometer testing, Urinalysis, Brewing, Battery Acid |
When Should You Use Each?
Use Density whenever you need to compute actual mass from volume (e.g. grams = mL × g/mL). Use Specific Gravity when assessing buoyancy, checking battery electrolyte charge level, measuring fermentation sugar depletion in brewing, or performing clinical hydrometer tests where relative comparison is paramount.
🧪 Interactive Specific Gravity (SG) Calculator
Input liquid density and select water baseline temperature to compute exact dimensionless Specific Gravity.
How Liquid Density Is Measured
Discover the four primary laboratory techniques used by scientists and engineers to measure liquid density accurately.
Hydrometer
A weighted glass instrument operating on Archimedes' buoyancy principle. It floats deeper in lighter fluids and higher in denser fluids. Direct stem readings provide quick Specific Gravity.
Pycnometer
A precision glass flask of precisely calibrated fixed volume. By weighing the empty vessel, then filled with water, then filled with sample liquid, density is determined to high precision.
Digital Density Meter
Uses an oscillating U-tube electronic sensor. The frequency of oscillation changes based on the liquid mass filling the tube, yielding digital density values with automatic temperature control.
Laboratory Balance Method
Measures liquid sample mass on an analytical balance while measuring volume using a volumetric flask or graduated pipette. Simple, reliable, and standard in high school and college labs.
Which Method Is Most Accurate?
The Digital Density Meter (Oscillating U-Tube) is the industry gold standard for modern industrial labs, providing accuracy down to 5 decimal places with Peltier temperature control. For classical metrology, the Pycnometer method provides the highest benchmark accuracy without electronic components.
🔍 Lab Equipment Interactive Selector
Click any measurement method below to view detailed operational specifications, sample size needs, and ideal use cases.
Hydrometer Testing
Operates by submerging a weighted bulb in a fluid cylinder. The floating depth directly indicates Specific Gravity on a calibrated stem scale.
Applications of Liquid Density
Explore how density monitoring underpins quality control, safety, and operational precision across major global industries.
Food Industry
Monitors sugar concentration (Brix scale) in juices, sodas, and syrups. Density testing ensures consistent alcoholic content in beer and wine brewing and detects milk adulteration.
Chemical Engineering
Controls distillation column separation, acid concentration verification, reaction stoichiometry, and pipe sizing calculations in chemical manufacturing plants.
Pharmaceutical Industry
Guarantees exact active pharmaceutical ingredient (API) concentration in liquid syrups, IV fluids, and injectable formulations under strict GMP quality compliance.
Petroleum Industry
Measures API gravity of crude oils, jet fuel grades, and lubricants. Used for custody transfer billing, refinery quality grading, and fuel blend validation.
Laboratory Research
Identifies synthetic unknowns, verifies reagent purity, separates cellular components via density gradient centrifugation, and computes solution molarity.
Manufacturing
Validates polymer blend ratios, coolant fluids, electroplating baths, and paints to ensure uniform film thickness and coating durability.
Common Density Mistakes
Avoid these four frequent measurement errors when performing volume-to-mass conversions.
Assuming 1 mL Always Equals 1 g
The 1 mL = 1 g rule applies only to pure water. Assuming honey (1.42 g/mL) or olive oil (0.918 g/mL) weighs 1 g per mL results in errors exceeding 40%!
Ignoring Temperature
Measuring fluid volume at 80°C using reference density table values calibrated at 20°C introduces systematic volume expansion errors up to 4%.
Confusing Density with Concentration
Density measures total mass per total volume, whereas concentration measures solute mass per solution volume. They are related but mathematically distinct.
Mixing Density and Specific Gravity
Multiplying volume in mL by Specific Gravity works in g/mL because water is 1.0, but fails if volume is in cubic feet (where water density is 62.4 lb/ft³).
🧮 Interactive Density Error Calculator
Select a common mistake scenario below to see the exact percentage error introduced in mass calculations!
Density Reference by Category
Quick reference breakdown of standard density ranges across six core chemical categories.
Cooking Liquids
Includes milks, juices, stocks, vinegars, and syrups. Ranges from 0.99 g/mL (wines) to 1.42 g/mL (heavy honey).
Oils
Plant and mineral oils range strictly between 0.89 g/mL and 0.96 g/mL. All common oils float on water.
Alcohols
Pure monohydric alcohols range from 0.785 g/mL to 0.792 g/mL. Aqueous alcohol solutions vary based on proof rating.
Fuels
Petroleum motor fuels range from 0.74 g/mL (gasoline) to 0.84 g/mL (diesel fuel #2) at 15°C.
Laboratory Chemicals
Spans extreme ranges from light organic ethers (0.71 g/mL) to dense chlorinated solvents like chloroform (1.49 g/mL).
Industrial Liquids
Concentrated acids, coolants, and liquid metals ranging up to 1.84 g/mL (sulfuric acid) and 13.53 g/mL (mercury).
Understanding Liquid Density
Density describes how much mass is packed into a given volume. For liquids, it is typically measured in grams per milliliter (g/mL). Knowing a liquid's density lets you convert between volume and mass accurately.
Key Relationships
Volume = Mass ÷ Density
Once you have a density value from the table above, plug it into the milliliters to milligrams tool, the mL to grams converter, or the general volume to mass converter. If your substance isn't listed, calculate it from your own measurements with the density calculator, then return to the main mL to mg converter.
Why Density Varies
- Molecular weight — Heavier molecules pack more mass per unit volume.
- Temperature — Warmer liquids expand and become less dense.
- Dissolved solids — Sugar, salt, or minerals increase density.
- Pressure — Affects gases significantly but liquids only slightly.
Related Converters
Other conversions you may find useful.
Conversion Tools
Choose the right converter for your needs.
mg to mL Converter
Convert milligrams to milliliters. Find volume from mass with density.
mL to Grams Converter
Convert milliliters to grams using substance density. Perfect for cooking and lab work.
mL to Kilograms Converter
Convert milliliters to kilograms. Ideal for large-volume industrial conversions.
mL to Pounds Converter
Convert milliliters to pounds. Bridge metric volume to imperial weight instantly.
mL to Liters Converter
Convert milliliters to liters. Simple volume unit conversion — no density needed.
Volume to Mass Converter
Convert volume (mL) to mass (mg) using density. Essential for lab and kitchen.
Mass to Volume Converter
Convert mass (mg) to volume (mL) using density. Find how much space your substance takes.
Density Calculator
Calculate density from mass and volume. The key to all mass-volume conversions.
Volume to Density
Find density when you know volume and mass. Identify unknown substances.
Density to Volume
Calculate volume from density and mass. Find container size needed.
Mass to Density Converter
Calculate density from mass and volume. Determine substance identity from measurements.
Density to Mass Converter
Calculate mass from density and volume. Find the weight of any liquid instantly.
mL to Ounces Converter
Convert milliliters to fluid ounces. Bridge metric and imperial volume units.
Liquid Density Lookup
Search density values for 100+ common liquids. Reference tool for conversions.
Normality Calculator
Calculate normality (N) from molarity, equivalent weight, and volume for chemistry.
Molarity Calculator
Calculate solution molarity from mass, molar mass, and volume.
Cups in a Pint
Convert between cups and pints for cooking. US & Imperial support.
cc to mL Converter
Convert cubic centimeters to milliliters. 1 cc = 1 mL exactly.
mcg vs mg Converter
Convert micrograms to milligrams. Critical for medication dosing.
Frequently Compared Liquids
Detailed side-by-side density comparisons for five of the most searched liquid pairings.
Water vs Honey Density
Pure honey (1.420 g/mL) is 42% denser than water (1.000 g/mL). Because honey contains high concentrations of dissolved fructose and glucose (over 80% sugars by mass), 100 mL of honey weighs 142 grams compared to 100 grams for water.
Water vs Olive Oil
Olive oil (0.918 g/mL) is approximately 8.2% less dense than water. When poured together, olive oil floats cleanly on top of water without dissolving, forming two distinct immiscible layers.
Diesel vs Gasoline
Diesel fuel (0.832 g/mL) is roughly 11.2% denser than gasoline (0.748 g/mL). Diesel consists of longer hydrocarbon chains (C10-C15) than gasoline (C4-C12), yielding higher energy density per gallon.
Ethanol vs Methanol
Methanol (0.792 g/mL) is slightly denser than pure ethanol (0.789 g/mL). Although methanol has a smaller molecular mass, its tighter hydrogen bonding structure packs molecules closely together.
Mercury vs Water
Liquid mercury (13.534 g/mL) is an astonishing 13.5 times denser than water! A single 1-liter container of mercury weighs over 13.5 kilograms (nearly 30 lbs), allowing solid iron cannonballs to float on its surface.
🥊 Interactive Dual Liquid Face-Off Tool
Select any liquid comparison pairing to inspect live density ratios, float predictions, and weight differences for 100 mL.
Liquid Density FAQ
Common questions about liquid density values.
Mercury at 13.534 g/mL is the densest commonly encountered liquid. It's so dense that iron floats on it!
Oils have densities below 1.0 g/mL (e.g., olive oil is 0.918 g/mL). Since they are less dense than water, they float. This is also why oil spills spread across the surface of water.
Yes. Heating a liquid causes it to expand, lowering its density. The values in this table are measured at approximately 20 °C (room temperature). For precise work, always check the temperature.
To convert volume to mass: mass = volume × density. To convert mass to volume: volume = mass ÷ density. Find the density value here, then use our calculators for instant results.
These are standard reference values at approximately 20 °C. Real-world density may vary slightly based on temperature, purity, brand, and formulation. For most everyday and educational purposes, these values are sufficiently accurate.
Scientific References and Data Sources
All density metrics on this page are cross-referenced with accredited International Organization for Standardization (ISO) and NIST thermodynamic tables.
Standard Density References
Density figures are compiled from authoritative physical reference compendiums, including the CRC Handbook of Chemistry and Physics (104th Edition), NIST WebBook of Chemical Thermodynamics, and Perry's Chemical Engineers' Handbook.
Measurement Conditions
Unless noted otherwise, all liquid density values are standardized to 20.0 °C (68.0 °F) at a standard atmospheric pressure of 101.325 kPa (1.000 atm).
Data Accuracy
Reported values reflect pure chemical grade substances (>99.5% purity). Real-world commercial grades (e.g. food oils, fuels, honey formulations) may vary by ±0.5% due to natural origin and water content.
Last Updated Information
This database was verified against IUPAC international atomic weight and physical data tables on August 2026.
📚 Interactive Citation & Verification Inspector
Click a standard data source to review verification metadata, NIST standards, and measurement protocol details.
CRC Handbook of Chemistry and Physics
Primary physical constant authority for organic solvent densities, aqueous solution specific gravities, and temperature coefficients.