How to calculate volume
Result = Value × (factor of From unit ÷ factor of To unit)
Worked example. 2 cups (us) equals: 473.176473 milliliters.
Example inputs — Value: 2; From: Cups (US); To: Milliliters. Starting values are illustrative.
From George Guju, founder of Calculyn · Educational calculator guidance, not professional advice.
How it works
Every unit is first converted to a common base unit, then into the unit you want. Conversion factors use exact international definitions (for example, 1 inch = 2.54 cm exactly). US customary units are used for cups, pints and gallons.
Assumptions & limitations
- Results are rounded for display.
Formula and assumptions reviewed October 2026 by the Calculyn team. How we build our calculators
Frequently asked questions
Are UK and US cups the same?
No. This converter uses US customary units; a US cup is about 236.6 ml.