Milliliters to Cups Calculator
Converts millilitres to US customary cups using 236.5882365 mL per cup (NIST). Aliases cover fluid-ounce search intents.
Limitation: Educational kitchen conversion only.
How to Convert mL to US Cups
Enter millilitres. The divisor is the NIST US cup, not the 250 mL metric cup.
Enter the liquid volume in millilitres.
Weigh when it matters
Volume-to-weight charts are averages. For finicky baking, weigh on a kitchen scale.
What the Cup Output Shows
One US cup is 236.588 mL. Two hundred fifty millilitres is about 1.057 US cups—close but not identical.
Worked Examples
236.588 mL
Inputs
Result
Exact NIST US cup definition.
500 mL
Inputs
Result
500 ÷ 236.588 ≈ 2.1134 cups.
Check your cup style
US customary cups differ from metric cups (250 mL). This cluster uses the US legal cup.
Frequently Asked Questions
Still have questions about this calculation?
Try the CalculatorMillilitres to Cups Formula
Liquid volume converts through the fixed US cup millilitre value.
Formula
US cup
cups = mL ÷ 236.5882365
Fluid ounces
8 fl oz = 1 US cup
Scientific Background
Assumptions follow published kitchen references cited in sources. Results are rounded for display.
Sources & review
Milliliters to Cups Calculator documents the references behind its formulas and assumptions. Always treat results as educational estimates, not personalized professional advice.
Last reviewed
July 22, 2026
Reference
nist.gov
https://www.nist.gov/pml/owm/si-unitsFree Calculator Hub methodology
Free Calculator Hub
/methodology
See our methodology and corrections policy.