⚖️ Mass → Volume ConversionDensity: 1 kg/L
Kg to Litres: Water
Convert kilograms to litres of water instantly. 1 kg of water equals exactly 1 litre at 4°C. Free, accurate mass to volume calculator with temperature ranges.
Enter weight to convert
kg
Presets:
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Enter density in kg/L (water = 1.000 kg/L)
- Reference Density
- 1.000 kg/L
- Density Range
- 0.970–1.030 kg/L
- Standard Temp
- 20°C
- Active Formula
- V = m ÷ ρ
Density values are approximate and usually based on room temperature, around 20°C, unless otherwise stated.
Verified Material Specification & StandardReviewed August 2026
Standard CitationNIST Standard Reference Database / IUPAC
Reference Density1.000 kg/L (g/cm³)
Standard Temperature4°C Standard
Temperature vs. Density Curve for Water
How thermal expansion alters physical density and volume per kg.
| Operating Temperature | Estimated Density | 1 kg Volume (L) | 1 Litre Mass (kg) |
|---|---|---|---|
| 0°C (Cold / Winter) | 1.005 kg/L | 0.995 L | 1.005 kg |
| 4°C (Standard Reference) | 1.000 kg/L | 1.000 L | 1.000 kg |
| 40°C (Process Heat / Summer) | 0.995 kg/L | 1.005 L | 0.995 kg |
| 80°C (Elevated Temperature) | 0.985 kg/L | 1.015 L | 0.985 kg |
How to Calculate Kg to Litres for Water
To calculate the volume in litres from a known mass of Water, divide the mass in kilograms by the substance density:
Volume (L) = Mass (kg) ÷ 1 kg/L
1 Litre Mass1 L = 1.000 kg1000 grams per litre
1 Kilogram Volume1 kg = 1.000 L1000 mL per kilogram
Water Kg to Litres Conversion Table
| Mass (Kilograms) | Calculated Volume (Litres) | Millilitres (mL) |
|---|---|---|
| 1 kg | 1.000 L | 1,000 mL |
| 2 kg | 2.000 L | 2,000 mL |
| 5 kg | 5.000 L | 5,000 mL |
| 10 kg | 10.000 L | 10,000 mL |
| 20 kg | 20.000 L | 20,000 mL |
| 25 kg | 25.000 L | 25,000 mL |
| 50 kg | 50.000 L | 50,000 mL |
| 100 kg | 100.000 L | 100,000 mL |
| 200 kg | 200.000 L | 200,000 mL |
| 1000 kg | 1000.000 L | 1,000,000 mL |
Real-World Industry Applications for Water
Water density varies with temperature from 1.000 kg/L at 4°C down to 0.958 kg/L at boiling point (100°C). In engineering and hydrological metering, temperature compensation is applied for precision.
Engineering Specification: 0.958 to 1.000 kg/L (1.000 kg/L at 4°C, 0.998 kg/L at 20°C, 0.958 kg/L at 100°C)
Interactive Density Behavior
Mass
1.00
kg÷
1.00 kg/L
Water
Volume
1.000
LitresVolume
1.00 L of liquid
Frequently Asked Questions
Common practical questions for converting Water.
Why is 1 kg of water exactly 1 litre at 4°C?+
The metric system was originally standardized on water: 1 litre was defined as the volume of 1 kilogram of pure water at its maximum density point (4°C).
What is the density range of water across temperatures?+
Water density ranges from 1.000 kg/L at 4°C to 0.998 kg/L at 20°C, down to 0.958 kg/L at 100°C.