How this calculator works
Kitchen volumes depend on the measuring convention. Here US cup means the customary 236.5882365 mL cup, not a metric 250 mL cup. Volume does not determine ingredient weight without density: flour and water weigh differently at the same volume.
The formula
Base amount = value × source factor
Target amount = base amount / target factorA quick example
1 US customary cup = 16 US tablespoons = 236.5882365 mL.
How to use this calculator
- Enter a value using a decimal point.
- Choose the source and target units.
- Read the live result or swap units to reverse the direction.
A few common questions
Which convention does this converter use?
Kitchen volumes depend on the measuring convention. Here US cup means the customary 236.5882365 mL cup, not a metric 250 mL cup. Volume does not determine ingredient weight without density: flour and water weigh differently at the same volume.
Can I reverse the conversion?
Yes. Swap exchanges the units, keeps your input amount and calculates again.
Why is the displayed result rounded?
The calculation uses the full stored factor. Results show up to six decimal places, with scientific notation for very small or large amounts.
Reference: NIST conversion factors