Density & measurement
Liquid Mass & Volume Calculator
Estimate liquid mass from volume, or volume from mass, using your entered density. See liters, cubic meters, kilograms, tonnes and pounds together.
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INPUT GROUP 01
Known measurement and density
Use a density at the same temperature and composition as the measured liquid.
Check the assumptions before acting on a result.
Read the method and exampleYOUR CALCULATION
Mass and liquid volume at the entered density.
Volume (L)
Volume (m³)
Mass (metric tonnes)
Mass (international pounds)
Illustrative inputs loaded. Replace them with your own assumptions.
How the liquid mass & volume calculator works
Mass equals volume multiplied by density. With volume in liters and density in kg/L, the result is kilograms. If mass is the starting measurement, volume in liters equals mass in kilograms divided by density. Density must be greater than zero.
One cubic meter is 1,000 liters, one metric tonne is 1,000 kilograms, and one international pound is 0.45359237 kilograms. Kilograms and pounds here are units of mass rather than force. The density unit kg/L is numerically equal to g/mL.
Density depends on the actual material, temperature and composition. The example is a fictional density rather than a product recommendation. The tool does not apply thermal expansion, pressure corrections, mixture volume changes, buoyancy or a vessel load limit.
Worked example
At an entered density of 0.85 kg/L, 1,000 L corresponds to 850 kg, 1 m³, 0.85 metric tonnes and approximately 1,873.929 pounds. Selecting mass and entering 850 kg at the same density returns 1,000 L.
Sources and assumptions
The source material explains the underlying calculation or pricing structure. Entered prices, costs, schedules and scenario choices are your assumptions; this tool does not obtain supplier quotes or predict actual results.
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