Skip to main content
KL
Kg to litre
⚡ Instant Mass to Volume Calculator

kg to Liters Converter (Free Online kg to L Calculator)

Use our free kg to liters converter to calculate the exact volume in liters (L) from weight in kilograms (kg). Enter your mass below and select from 772+ verified substances or enter a custom density.

🔄 Reverse: Liters to KG Converter →⚛️ What Is Density? (Physics) →📖 772+ Substance Database →
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.

Custom Density & 3-Way Multi-Unit Solver

Calculate Volume, Mass, or Density with temperature correction.

⚖️

Custom Density & 3-Way Unit Solver

Solve for Volume, Mass, or Density with comprehensive multi-unit conversions and temperature compensation

Universal Unit Engine
Filter Density Reference by Industry
🌡️Temperature Density Correction (Optional)
Calculated Output Volume

12.019Litres

Equal to 12,019.23 mL (3.175 US Gal)

Effective Density:0.832 kg/L
Specific Gravity:0.832 SG
Mathematical Derivation & Steps

1. Formula: Volume (L) = Mass (kg) ÷ Density (kg/L)

2. Substitution: 10.00 kg ÷ 0.832 kg/L

3. Final Result = 12.019 Litres

Density values are approximate and usually based on room temperature, around 20°C, unless otherwise stated.

How to Convert Kilograms to Liters

Since kilograms are a unit of mass and liters are a unit of volume, they measure completely different physical dimensions. To convert between mass and volume, we must account for the density (ρ) of the substance.

Density represents the amount of mass packed into a given unit of spatial volume. Therefore, to convert kilograms to liters of any liquid, powder, or solid material, you must divide the mass in kilograms by its density in kg/L.

Kilograms to Liters Formula

To convert a measurement in kilograms to liters, divide the weight by the density of the ingredient or material in kilograms per liter (kg/L):

Liters = Kilograms ÷ Density (kg/L)

SI Algebraic Notation: V = m ÷ ρ (where V = volume in L, m = mass in kg, ρ = density in kg/L).

Worked Example 1: 5 kg at Density 0.700 kg/L

Liters = 5 kg ÷ 0.700 kg/L = 7.1429 Liters.

Worked Example 2: 10 kg Diesel (0.832 kg/L)

Liters = 10 kg ÷ 0.832 kg/L = 12.0192 Liters.

Kilogram to Liter Conversion Table (1 kg to 20 kg)

Side-by-side volume comparisons in liters across 5 benchmark liquids: Water, Milk, Cooking Oil, Gasoline, and Diesel.

Weight (kg)Water (1.000 kg/L)Milk (1.030 kg/L)Cooking Oil (0.910 kg/L)Gasoline (0.748 kg/L)Diesel (0.832 kg/L)
1 kg1.000 L0.971 L1.099 L1.337 L1.202 L
2 kg2.000 L1.942 L2.198 L2.674 L2.404 L
3 kg3.000 L2.913 L3.297 L4.011 L3.606 L
4 kg4.000 L3.883 L4.396 L5.348 L4.808 L
5 kg5.000 L4.854 L5.495 L6.684 L6.010 L
6 kg6.000 L5.825 L6.593 L8.021 L7.212 L
7 kg7.000 L6.796 L7.692 L9.358 L8.413 L
8 kg8.000 L7.767 L8.791 L10.695 L9.615 L
9 kg9.000 L8.738 L9.890 L12.032 L10.817 L
10 kg10.000 L9.709 L10.989 L13.369 L12.019 L
11 kg11.000 L10.680 L12.088 L14.706 L13.221 L
12 kg12.000 L11.650 L13.187 L16.043 L14.423 L
13 kg13.000 L12.621 L14.286 L17.380 L15.625 L
14 kg14.000 L13.592 L15.385 L18.717 L16.827 L
15 kg15.000 L14.563 L16.484 L20.053 L18.029 L
16 kg16.000 L15.534 L17.582 L21.390 L19.231 L
17 kg17.000 L16.505 L18.681 L22.727 L20.433 L
18 kg18.000 L17.476 L19.780 L24.064 L21.635 L
19 kg19.000 L18.447 L20.879 L25.401 L22.837 L
20 kg20.000 L19.417 L21.978 L26.738 L24.038 L

When to Convert Kilograms to Liters

1. Cooking & Professional Baking

Professional chefs recommend measuring ingredients by weight (kg) rather than volume (liters or cups) to eliminate aeration, compaction, and humidity errors. When converting recipe volumes to digital scale masses, density is required (e.g. NIST Culinary Measurement Guidelines).

Chef's Cooking Guide →

2. Chemical Stoichiometry

Chemical synthesis requires combining precise molar ratios of reactants. Converting powdered solids (weighed in kg) with liquid reagents (metered in liters) ensures stoichiometric balance and prevents runaway exothermic reactions.

Industrial Solvents Guide →

3. Freight & Logistics Transport

Cargo transport vehicles (trucks, ships, cargo planes) face dual constraints: maximum gross axle weight (kg) and spatial cargo volume (liters / $m^3$). Converting liquid cargo mass ensures vehicles do not exceed legal weighbridge limits while maintaining required ullage headspace.

Logistics & Freight Guide →

What Is a Kilogram?

One kilogram (kg) equals 1,000 grams, 2.204623 pounds, or 1/1,000 of a metric tonne.

Under the 2019 International System of Units (SI) revision by the BIPM, the kilogram is defined by fixing the numerical value of the Planck constant (h = 6.62607015 × 10⁻³⁴ J⋅s). While mass is an intrinsic measure of matter, weight is gravitational force (W = m ⋅ g). An object with a mass of 1 kg exerts approximately 9.80665 Newtons of downward force on Earth.

What Is a Liter?

A liter (L, or British spelling litre) is a metric unit of volume equal to 1 cubic decimeter (1 dm³), 1,000 cubic centimeters (1,000 cm³), or 0.264172 US liquid gallons.

The liter is an SI-accepted non-SI unit for volume. Originally defined in 1795 as the volume of 1 kilogram of pure water at melting ice temperature, it is now mathematically tied directly to the cubic meter (1 L = 0.001 m³).

More Kilogram & Liter Unit Conversions

Explore conversions between kilograms, volume units, and imperial standards:

Kg to Millilitres (mL) →1 kg water = 1,000 mLKg to Gallons (US / UK) →1 kg water = 0.264 US gal / 0.220 UK galKg to Fluid Ounces (fl oz) →1 kg water = 33.814 fl ozKg to Cups & Tablespoons →Culinary volumetric conversionKg to Grams (g) & Pounds (lb) →Mass to mass unit scalingLiters to Kg (Reverse) →Calculate weight from liquid volume

Frequently Asked Questions

Everything you need to know about kg to liters conversion.

How do you convert kg to liters?+
To convert kilograms (kg) to liters (L), divide the mass in kilograms by the density of the substance in kg/L. Formula: Volume (L) = Mass (kg) ÷ Density (kg/L). For example, 5 kg of diesel (density 0.832 kg/L) equals 5 ÷ 0.832 = 6.010 liters.
Is 1 kg always equal to 1 liter?+
No. 1 kg equals exactly 1 liter only for pure water at 4°C to 20°C because water has a density of 1.000 kg/L. For lighter liquids like gasoline (0.748 kg/L) or olive oil (0.910 kg/L), 1 kg occupies more than 1 liter (1.34 L and 1.10 L respectively). For heavier liquids like honey (1.420 kg/L), 1 kg occupies only 0.704 liters.
What is the difference between liters and litres?+
"Liter" is the standard American English spelling (US), while "litre" is the official International System of Units (SI) and British / Commonwealth English spelling. Both refer to the identical metric unit of volume equal to 1 cubic decimeter (1 dm³ or 1,000 cm³).
How many liters is 5 kg of water, milk, and cooking oil?+
5 kg of water equals 5.000 liters. 5 kg of whole milk (1.030 kg/L) equals 4.854 liters. 5 kg of olive oil (0.910 kg/L) equals 5.495 liters.
How do you convert liters back to kg (reverse conversion)?+
To convert liters to kilograms, multiply the volume in liters by the substance density: Mass (kg) = Volume (L) × Density (kg/L). For example, 20 liters of milk weighs 20 × 1.030 = 20.60 kg.
Why does temperature change the kg to liters calculation?+
Thermal expansion causes liquids to expand as they warm up. While the mass in kilograms remains unchanged, the molecules spread out, increasing the volume in liters and lowering physical density. Petroleum fuels expand ~0.85% per 10°C, which is why fuel billing is standardized to 15°C.

Scientific & Regulatory References

  1. NIST (National Institute of Standards and Technology) — Culinary Measurement Tips and Volumetric Consistency (NIST OWM).
  2. CK-12 / LibreTexts — Mass-Volume Stoichiometry & Chemical Reaction Calculations.
  3. BIPM (Bureau International des Poids et Mesures) — The International System of Units (SI Brochure, 9th Edition, 2019 Planck Constant Redefinition).
  4. ISO 3696 / IUPAC — Water for Analytical Laboratory Use & Density Reference Standard Tables.
  5. ASTM D4052 & Table 54B — Standard Test Method for Density, Relative Density, and API Gravity of Liquids.