How many kilograms are in 1,000 liters of water?
How many kilograms are in 1,000 liters of water?
Answer
The density of water is 0.998 kg/L (liquid water at 20 °C; rounding to 1.00 kg/L is fine for everyday use).
How the mass of 1,000 liters of water was worked out
0.998 kg/L × 1,000 L
=998 kg
The density comes from FAO/INFOODS Density Database v2.0. Liquid water at 20 °C; rounding to 1.00 kg/L is fine for everyday use.
Why a liter and a kilogram are not the same thing
A liter measures volume, a kilogram measures mass, and density is what ties them together: how many kilograms one liter of this particular substance comes to. The coincidence that makes people treat them as one thing is historical — in 1795 the gram was defined as the mass of one cubic centimeter of water, so a liter of water weighed a kilogram by construction. For anything else the equality breaks.
The extremes of this page make it obvious: one liter of LPG weighs 0.51 kg, while one liter of densely packed sand weighs 2 kg — four times more at the very same volume.
If the substance is not known in advance, start from how many kilograms are in 1,000 liters — the same volume across every substance at once.
The other way round: how much room a kilogram takes
This page starts from a volume and answers in kilograms. The opposite question — how many liters a given mass comes to — is what the kilograms to liters calculator is for. Both read the same density table, so the two pages agree wherever the answer is volume times density.
For water that means 1,000 liters weighs 998 kg here, and one kilogram of it takes 1 liter there.
Related Calculations
See Also
- Kilograms to Liters - How many liters are in a kilogram of water, honey, gasoline, sand and other substances — by density
- L to Ml - Convert Liters to Milliliters
- Sand Calculator - Cubic yards, tons and coverage for any area
- Topsoil Calculator - Cubic yards, weight and coverage for any area
<a href="https://calculat.io/en/volume/l-to-kg/1000--water">1,000 liters of water = 998 kg - Calculatio</a>
How much 1,000 liters of each substance weighs
| Substance | Mass | Density, kg/L |
|---|---|---|
| Beer | 1,010 kg | 1.01 |
| Cement | 1,250–1,400 kg | 1.25–1.4 |
| Coal | 654–1,266 kg | 0.654–1.266 |
| Cucumbers | 620–640 kg | 0.62–0.64 |
| Diesel | 834 kg | 0.834 |
| Gasoline | 740 kg | 0.74 |
| Honey | 1,420 kg | 1.42 |
| Juice | 1,060 kg | 1.06 |
| LPG | 510 kg | 0.51 |
| Milk | 1,030 kg | 1.03 |
| Mineral spirits | 780 kg | 0.78 |
| Motor oil | 850 kg | 0.85 |
| Sand | 1,650–2,000 kg | 1.65–2 |
| Soil | 1,300–1,500 kg | 1.3–1.5 |
| Sugar | 720–900 kg | 0.72–0.9 |
| Tomatoes | 550–600 kg | 0.55–0.6 |
| Vegetable oil | 920 kg | 0.92 |
| Wall primer | 1,000 kg | 1 |
| Water | 998 kg | 0.998 |