US vs UK Cup Sizes — Which One is Your Recipe Using?
Not all cups are equal. Here's the difference and how to convert any recipe safely.
| Cup Type | Volume | Where Used |
|---|---|---|
| US Customary Cup | 240 ml | USA, most Indian recipe blogs |
| Metric Cup | 250 ml | UK, Australia, NZ, Canada (metric) |
| Imperial Cup | 284 ml | Older UK recipes (pre-metric) |
| 1 Katori (steel) | ~240 ml | Indian home cooking |
Convert US → Metric Cup (× 1.042)
- 1 US cup (240ml) = 250 ml metric cup → multiply volume by 1.042
- 1 US cup flour (120g) ≈ 125g in a metric cup
- For dry ingredients, convert by weight, not volume
RecipeScaler uses the US cup (240 ml) and shows every ingredient in grams — so any cup style converts cleanly. Choose your region for US/UK units.
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