CONVERSION
Litres to US gallons converter
Convert litres into US liquid gallons, UK imperial gallons, quarts, pints, fluid ounces and millilitres for fuel, recipes, tanks and liquids.
Neutral presentation is active.
No regional currency, unit or language profile is applied. This choice does not convert values or change formulas, results, routes or legal guidance.
US liquid gallons
2.6417 galUK imperial gallons: 2.1997 gal- US quarts
- 10.567 qt
- US pints
- 21.134 pt
- US fluid ounces
- 338.14 fl oz
- Millilitres
- 10,000 ml
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Verification and calculation details
- Purpose
- Litres to US gallons converter
- Variables and units
- Use the labelled fields and units shown in the calculator. Results use those units unless a conversion is stated.
- Formula and method
- The exact formula and worked example are shown below. Deterministic formula executed locally in the browser.
- Assumptions
- Only entered values and stated assumptions are included. Local fees, rules and professional requirements are excluded unless explicitly shown.
- Engine version
- 1.0.0
- Production verification baseline
- Release 63 · source
998803f - Verification run
release-v63-2026-09-20- Last verified
- — Automated release checks passing
Read the Calculation Standard · Report a calculation or source issue
How this calculator works
US gallons = litres ÷ 3.785411784. UK imperial gallons = litres ÷ 4.54609. Millilitres = litres × 1,000.
Variables and inputs
- Litres
- Required numeric input. finite numeric value; calculator-specific validation applies.
How to interpret the result
The calculator returns US liquid gallons, UK imperial gallons, US quarts and pints, US fluid ounces, millilitres. Read each output against the assumptions you entered, compare alternatives one variable at a time, and use the result as an estimate rather than a promise.
Common mistakes to avoid
- Mixing units or entering a rate as a decimal when the field requests a percentage.
- Rounding intermediate values instead of the final displayed result.
- Leaving out a cost, timing rule or local requirement listed in the assumptions below.
Practical uses
Use the litres to us gallons converter to check a real scenario, compare a changed assumption and explain the arithmetic before relying on a quote, specification or decision.
Worked example
10 litres equals approximately 2.6417 US liquid gallons, 2.1997 UK imperial gallons, 10.5669 US quarts, 338.1402 US fluid ounces or exactly 10,000 millilitres.
Assumptions and limitations
- US liquid and UK imperial volume units are treated as different standards
- the input is a liquid volume in litres and results are rounded only for display
- results are estimates; confirm rates, prices, units and professional requirements that apply
Important notes
Results are estimates based on the values entered. Confirm rates, prices, units and professional requirements that apply in your location. Review the Answer Atlas Calculation Standard and corrections policy for formula, privacy and correction rules.
Frequently asked questions
Are US gallons and UK gallons the same?
No. This page shows both because US liquid gallons and UK imperial gallons use different definitions.
Can I use decimal litres?
Yes. Decimal litre values such as 1.5 L or 0.75 L are supported.
Does Answer Atlas store my volume value?
No. The conversion runs in your browser and the number you enter is not sent anywhere.