Cooking Measurement Converter
Convert between cups, tablespoons, teaspoons, milliliters and fluid ounces — and scale a recipe up or down.
Volume conversions route through milliliters. Handy constants: 1 US cup = 16 tbsp = 48 tsp = 236.6 ml; 1 tbsp = 3 tsp. Note US vs metric vs UK cups differ (US 236.6 ml, metric 250 ml, UK 284 ml) — this tool uses US measures. For dry ingredients, weight (grams) is more accurate than volume.
Formula
About Cooking Measurement Converter
The cooking measurement converter translates between the volume units recipes use — cups, tablespoons, teaspoons, fluid ounces and milliliters — and scales a whole recipe up or down in one step. Following an American recipe with metric measuring tools, or doubling a cake, or halving a sauce? Enter the amount, the units, and an optional scale factor (2 to double, 0.5 to halve), and it does both the unit conversion and the portion math. It uses US measures and routes through milliliters, with guidance on the cup-size differences between countries and when to weigh instead.
How to use Cooking Measurement Converter
- 1Enter your values into Cooking Measurement Converter — sensible, domain-typical defaults are pre-filled so you see a real result immediately.
- 2The result recomputes live using the formula shown on the page; there is no button to press.
- 3Adjust any input to compare scenarios, then read the worked example to see the substituted numbers.
Why use Cooking Measurement Converter?
- ✓Computes Cooking Measurement Converter instantly in your browser — no sign-up, no upload, no server round-trip.
- ✓100% free and unlimited, with the exact formula shown: convert via ml: 1 US cup = 236.6 ml = 16 tbsp = 48 tsp.
- ✓Runs entirely client-side, so every value you enter stays private on your device.
- ✓Live recompute as you type, with a worked example and authoritative references for trust.
Frequently asked questions
How many milliliters in a cup?+
A US cup is 236.6 ml, a metric cup is 250 ml, and a UK/imperial cup is 284 ml — so 'a cup' isn't universal. This tool uses the US cup (the most common in recipes). 1 US cup also equals 16 tablespoons or 48 teaspoons, and 1 tablespoon is 3 teaspoons — the constants that cover most recipe conversions.
How do I scale a recipe up or down?+
Multiply every ingredient by the same factor: 2 to double, 0.5 to halve, 1.5 for one-and-a-half. This tool's scale field does it alongside the unit conversion. Note that cooking times, pan sizes and leavening don't always scale linearly — doubling a cake may need a larger pan and slightly longer baking, not double the time.
Should I measure by volume or weight?+
Weight (grams) is far more accurate for dry ingredients like flour and sugar, because a 'cup' of flour varies a lot with how it's packed (scooped vs spooned can differ 20%+). Volume is fine for liquids and small quantities. Serious bakers weigh; for everyday cooking, volume conversions like these are perfectly practical.
Why do US and UK measurements differ?+
They evolved separately. The US kept older customary units (US cup 236.6 ml, US fl oz 29.6 ml), while the UK uses imperial (UK cup 284 ml, imperial fl oz 28.4 ml) or increasingly metric. A recipe's origin determines which to use — this converter uses US measures, so adjust if your recipe is British or metric to avoid proportion errors.
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