How much does a litre of honey weigh? Or a cubic metre of sand? Multiplying the volume by the density gives the mass. Densities for foods are averages – packing and moisture change them.
How to use the Volume to Mass Calculator
- Substance
- Custom density
- Volume V
- Every result field is editable: type into Mass and Volume V plus every other field update to match.
Results update as you type, every field has its own unit menu, and everything is calculated in your browser.
How it works
Choose the substance (or a custom density) and enter the volume, or type a mass into the result.
Inputs explained
| Field | What to enter |
|---|---|
| Substance | Choose one: Water, Milk, Honey, Olive oil … |
| Custom density | Units: kg/m³, g/cm³, g/mL, lb/ft³, lb/in³ |
| Volume V | Units: L, mL, m³, US gal, ft³ |
What each result means
- Mass = [r]×[Volume V]
- Density used = [r]
Example values
How the main result changes when Volume V changes and everything else stays at the example values above:
| Volume V (L) | Mass (kg) |
|---|---|
| 0.5 | 0.5 |
| 0.75 | 0.75 |
| 1 | 1 |
| 1.25 | 1.25 |
| 1.5 | 1.5 |
| 2 | 2 |
Formula
m = ρ·V
Worked example
Inputs — Substance: Water; Volume V: 1 L.
Results — Mass = 1 kg; Density used = 1,000 kg/m³.
Key terms
- Density
- Mass per unit volume.
Frequently asked questions
How much does a litre of water weigh?
About 1 kg.
Why are food densities approximate?
Packing, sifting and moisture vary.
Can I go from mass to volume?
Yes – type the mass into the result.
Is a cup of flour 125 g?
Roughly 120–130 g for sifted all-purpose flour.