Result
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Facts and limits of this method
| Base unit | Liter — all other units convert through it |
|---|---|
| 1 US gallon | 3.785411784 liters (liquid, not dry) |
| 1 US quart | 0.946352946 liters (¼ gallon) |
| 1 US pint | 0.473176473 liters (⅛ gallon) |
| 1 US fluid ounce | ≈29.5735 ml (1/128 gallon) |
| Total units | 10 — ml, l, m³, cm³, gal, qt, pt, fl oz, ft³, in³ |
When it misleads you
- The calculation happens in two steps: the value is first converted to liters, then from liters to the target unit, so choosing the same unit for "from" and "to" leaves the result unchanged.
- All gallons, quarts, pints and fluid ounces in this converter are US units, not British imperial: the imperial gallon (≈4.546 l) is noticeably larger than the US one (3.785 l) — don't mix them up when converting recipes or instructions.
- "Cubic centimeter" is numerically equal to a milliliter (1 cm³ = 1 ml) — this is a historically exact relationship, not an approximation.
- Rounding is applied only to the displayed result — internal calculations use the full precision of JavaScript floating-point numbers.
How it is calculated
Each of the ten units has a preset conversion factor to liters — for example, 1 US gallon = 3.785411784 l, 1 cubic foot = 28.316846592 l.
The entered value is multiplied by the factor of the selected "from" unit, giving volume in liters.
The volume in liters is divided by the factor of the "to" unit, giving the result in the target unit.
The result is rounded to the chosen number of decimal places and updates instantly whenever the value, units or precision change.
Questions and answers
Is this a US or imperial gallon?
US (liquid) gallon — 3.785411784 liters. The British imperial gallon (≈4.546 l) isn't supported here — it's a noticeably different quantity.
What's the difference between a quart and a pint?
1 US quart = 2 US pints = 0.946352946 liters; a pint is 0.473176473 liters, exactly half a quart.
Are a cubic centimeter and a milliliter the same thing?
Yes, numerically 1 cm³ = 1 ml — this is an exact relationship in the SI system.
Is my data sent anywhere?
No, the whole calculation runs in your browser.