Marks Calc
14 units

Volume Converter

Convert between metric (L, mL, m³) and imperial/US (gallon, fluid ounce, cup, pint, quart) volume units. Includes both US and UK gallon conversions.

Common volume conversions

FromEquivalent
1 L1000 mL · 0.001 m³ · 1000 cm³ · 0.264172 gal (US) · 0.219969 gal (UK)
5 L5000 mL · 0.005 m³ · 5000 cm³ · 1.32086 gal (US) · 1.099846 gal (UK)
10 L10000 mL · 0.01 m³ · 10000 cm³ · 2.641721 gal (US) · 2.199692 gal (UK)
100 L100000 mL · 0.1 m³ · 100000 cm³ · 26.417205 gal (US) · 21.996925 gal (UK)
1000 L1000000 mL · 1 m³ · 1000000 cm³ · 264.172052 gal (US) · 219.969248 gal (UK)

How the conversion works

Linear: `value × factor_from / factor_to`. Common: 1 US gallon ≈ 3.785 L, 1 UK gallon ≈ 4.546 L.

When you'll use this converter

  • Cooking and recipes (cups ↔ mL, tbsp ↔ tsp)
  • Fuel economy and tank capacity (gal ↔ L)
  • Brewing and beverages (pint, fl oz)
  • Industrial fluid handling (m³, barrels)

Frequently asked

Is a US gallon the same as a UK gallon?

No. A US gallon = 3.785 L while a UK (imperial) gallon = 4.546 L. UK gallons are about 20% larger.

How many milliliters in a teaspoon?

1 US teaspoon ≈ 4.929 mL. For cooking, 5 mL is a common rounded value.

How many liters in 1 cubic meter?

Exactly 1,000 L. 1 m³ = 1000 L because 1 L is defined as 1 dm³.