🔄 Reverse Conversion: Volume → MassDensity: 1 kg/L
Litres to kg: Water
Convert litres of Water into kilograms (kg) instantly. With a calibrated density of 1 kg/L, 1 litre weighs 1.000 kg.
Enter weight to convert
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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 Litres to Kg for Water
To calculate the mass in kilograms from a known volume of Water, multiply the volume in litres by the substance density:
Mass (kg) = Volume (L) × 1 kg/L
1 Litre Mass1 L = 1.000 kg1000 grams per litre
1 Kilogram Volume1 kg = 1.000 L1000 mL per kilogram
Water Litres to Kg Conversion Table
| Volume (Litres) | Calculated Mass (kg) | Grams (g) |
|---|---|---|
| 1 L | 1.000 kg | 1,000 g |
| 2 L | 2.000 kg | 2,000 g |
| 5 L | 5.000 kg | 5,000 g |
| 10 L | 10.000 kg | 10,000 g |
| 20 L | 20.000 kg | 20,000 g |
| 25 L | 25.000 kg | 25,000 g |
| 50 L | 50.000 kg | 50,000 g |
| 100 L | 100.000 kg | 100,000 g |
| 200 L | 200.000 kg | 200,000 g |
| 1000 L | 1000.000 kg | 1,000,000 g |
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.
How do I convert litres of Water to kilograms?+
Multiply the volume in litres by the density in kg/L. Formula: Mass (kg) = Volume (L) × Density (1 kg/L). For example, 10 litres of Water equals 10.000 kg.
How much does 1 litre of Water weigh in kg?+
1 litre of Water weighs exactly 1.000 kilograms (or 1000 grams) at standard reference temperature.
How much does 5 litres of Water weigh in kg?+
5 litres of Water weighs 5.000 kilograms (5 L × 1 kg/L).
How much does 20 litres of Water weigh in kg?+
20 litres of Water weighs 20.000 kilograms (20 L × 1 kg/L).