How it's calculated
litres = grams ÷ k (k = grams per litre of the substance)
grams = mass, k = mass of one litre of the substance in grams (density × 1000), litres = result. Density in g/mL = k ÷ 1000. Reverse: grams = litres × k.
Common values
| Substance | Mass for 1 liter |
|---|---|
| Water | 1000 g |
| Honey | 1420 g |
| Olive oil | 915 g |
| Vegetable oil | 920 g |
Common questions
Why does the answer depend on the substance?
Grams measure mass and liters measure volume. The bridge between them is density, which is different for water, honey, and oils.
Is 1 liter of water exactly 1000 grams?
Close enough for everyday use. It is exact at 4 °C and drifts slightly with temperature.