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Kg to litre
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basic Category1 kg/L

Convert Kg to Litres of 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:
700+ Available
Common:

Resulting Volume:

1.000Litres

Based on Water density 1 kg/L (Pure drinking water)

Real-World Tolerance Span:0.971 L – 1.031 L
Alternative Units & Equivalents:
Millilitres1,000
US Gallons0.264
UK Gallons0.220
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.

Water Quick Conversion Table

Standard 4°C Reference
Mass (kg)Volume (Litres)Volume (mL)US GallonsUK Gallons
1 kg1.000 L1,000 mL0.264 gal0.220 gal
5 kg5.000 L5,000 mL1.321 gal1.100 gal
10 kg10.000 L10,000 mL2.642 gal2.200 gal
25 kg25.000 L25,000 mL6.604 gal5.499 gal
50 kg50.000 L50,000 mL13.209 gal10.998 gal
100 kg100.000 L100,000 mL26.417 gal21.997 gal

How to Convert Water from kg to Litres

To convert Water from kilograms to litres, divide the mass (in kg) by its density (1 kg/L).

Formula: Volume (L) = Mass (kg) ÷ Density (kg/L)
Example: 1 kg ÷ 1 kg/L = 1.000 Litres

Physical Properties of Water

Verified: August 2026
Density (ρ)1 kg/L0.958 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)
1 Kg equals1.000 LLiquid volume
1 Litre weighs1.000 kgMass weight
Source AuthorityNIST Standard Reference Database / IUPAC
Density Range / Tolerance0.958 – 1.000 kg/L
Standard Temperature4°C Reference
kg to litre water1 kg water to litreconvert kg to liters waterwater density kg/Lwater density range
Methodology & Standards Policy →

Related Basic Substances

Physics Principles

How to Convert Kilograms to Litres

Converting mass (kilograms) to liquid volume (litres) is not a direct 1:1 ratio for every liquid. While 1 kg of pure water equals exactly 1 litre (at 4°C), other substances possess distinct mass densities due to their molecular structures.

1

To Convert Kg to Litres

Divide the total weight in kilograms by the liquid density (ρ) in kg/L.

2

To Convert Litres to Kg

Multiply the total liquid volume in litres by the substance density (ρ) in kg/L.

Formula 1: Kilograms to Litres
Volume (L) = Mass (kg) ÷ Density (kg/L)

Where Volume is in Litres (L), Mass is in Kilograms (kg), and ρ (rho) is density in kg/L.

Formula 2: Litres to Kilograms
Mass (kg) = Volume (L) × Density (kg/L)

Example: 5 Litres of Olive Oil (ρ = 0.918 kg/L) = 5 × 0.918 = 4.59 kg.

Frequently Asked Questions

Is 1 kg equal to 1 litre?+
Only for water approximately (at 4°C, 1 kg = 1.000 litre). For other substances like Water, you need density (1 kg/L).
How many litres is 1 kg of Water?+
Using density 1 kg/L, 1 kg of Water is approximately 1.000 litres (1000 mL).
How do you convert kg to litres?+
Divide mass in kg by density in kg/L. Formula: Volume (L) = Mass (kg) ÷ Density (kg/L). For Water, divide mass in kg by 1.
How much does 1 litre of Water weigh in kg?+
1 litre of Water weighs approximately 1.000 kilograms (1000 grams). Formula: Mass (kg) = Volume (L) × Density (kg/L).