# mL to Cups Converter URL: https://speedycalculator.com/calculators/conversion/ml-to-cups/ Last updated: 2026-10-25 > Convert millilitres (mL) to US cups (US cup): 1 millilitre = 0.0042267528 US cup, so multiply by 0.0042267528 or divide by 236.58824. Both fields are editable, so you can also type in US cups and get millilitres back. ## Inputs - Millilitres (mL) ## Results - US cups ## Formula ``` 1 mL = 0.0042267528 US cup 1 US cup = 236.58824 mL US cup = mL × 0.0042267528 ``` ## Explanation A U.S. cup is about 236.6 mL, while the metric cup used in Australia, Canada and New Zealand is exactly 250 mL. Recipes from different countries can therefore differ by about 6% per cup. ### How to use the mL to Cups Converter - Type the number of millilitres into the **Millilitres** field. Decimals such as 125 are fine. - Read the answer in **US cups** – it updates as you type, with no button to press. - To convert the other way, type into **US cups** and the millilitres are recalculated. - Press **Copy results** to copy both values with the page title, or **Copy link** to share this exact conversion. This page converts only mL ⇄ US cup. Need a different unit? Use the general volume converter, where you can choose any “from” and “to” unit. ### How it works Both units measure volume, so they are always in the same ratio: one millilitre equals 0.0042267528 US cups. The calculator multiplies the number of millilitres you type by 0.0042267528 to give US cups, and when you type into the US cups field it divides by the same factor to give millilitres. Because the ratio never changes, doubling the millilitres always doubles the US cups. Results are calculated at full precision and rounded only for display (up to eight decimal places, with very large or small values shown in scientific notation). ### How to convert millilitres to US cups - Write down the value in millilitres, for example **250 mL**. - Multiply by the conversion factor 0.0042267528 (because 1 millilitre = 0.0042267528 US cup). - 250 × 0.0042267528 = **1.0566882 US cup**. - To go back from US cups to millilitres, divide by 0.0042267528 – or multiply by 236.58824. ### mL to US cup conversion table MillilitresUS cupsUS cupsMillilitres50 mL0.21133764 US cup1 US cup236.58824 mL60 mL0.25360517 US cup2 US cup473.17647 mL80 mL0.33814023 US cup5 US cup1,182.9412 mL120 mL0.50721034 US cup10 US cup2,365.8824 mL125 mL0.5283441 US cup20 US cup4,731.7647 mL150 mL0.63401293 US cup50 US cup11,829.412 mL200 mL0.84535057 US cup100 US cup23,658.824 mL236.6 mL1.0000497 US cup1,000 US cup236,588.24 mL250 mL1.0566882 US cup500 mL2.1133764 US cup750 mL3.1700646 US cup1,000 mL4.2267528 US cup ### What is a millilitre? A millilitre is one thousandth of a litre and exactly one cubic centimetre. Medicines, cosmetics, drinks and kitchen measures are labelled in mL. ### What is a US cup? The U.S. customary cup is 8 U.S. fluid ounces, about 236.6 mL. Recipes from Australia, Canada and New Zealand often use the 250 mL metric cup instead. ### Quick mental conversion For a fast estimate, multiply millilitres by about **0.0042** to get US cups; the error is about 0.6%. Use the calculator above when you need the exact figure. ### Common mistakes to avoid Mixing u.s. and uk gallons, pints and fluid ounces, assuming a cup is always 250 ml, and treating volume and weight as interchangeable for anything except water. ## Worked example Inputs — Millilitres: 250 mL. Results — **US cups = 1.05668821 US cup**. ## FAQ **How many cups is 250 mL?** About 1.06 U.S. cups, or exactly 1 metric cup. **How many mL in a U.S. cup?** About 236.59 mL. **How many US cups are in one millilitre?** 1 mL = 0.0042267528 US cup. **How many millilitres are in one US cup?** 1 US cup = 236.58824 mL. **How do I convert millilitres to US cups?** Multiply the number of millilitres by 0.0042267528. For example, 250 mL × 0.0042267528 = 1.0566882 US cup. **How do I convert US cups back to millilitres?** Divide by 0.0042267528 (or multiply by 236.58824), or simply type the value into the US cups field above. **What is 100 mL in US cups?** 100 mL = 0.42267528 US cup. **What is 50 mL in US cups?** 50 mL = 0.21133764 US cup. **Is this conversion exact?** Yes. The factor comes from the official definitions of both units (NIST and the SI), so the only difference you may see is rounding in the last displayed digit. **Can I convert to other units on this page?** This page converts only between millilitres and US cups. To pick any volume unit, use the general volume converter linked under Related calculators. **What formula does the mL to Cups Converter use?** 1 mL = 0.0042267528 US cup. ## Sources - [NIST Special Publication 811 – Guide for the Use of the International System of Units](https://www.nist.gov/pml/special-publication-811) - [NIST Handbook 44 Appendix C – General tables of units of measurement](https://www.nist.gov/pml/owm/nist-handbook-44-current-edition)