Instant · Precise · Universal
47 units available
6 categories total
To mL: multiply by 284.131. To US cups: multiply by 1.201. To liters: multiply by 0.284131.
1 UK cup = 10 UK fl oz = 1/2 UK pint = 284.131 mL ≈ 1.2 US cups.
For example, 1 Cup (UK) (cup (UK)) = 2.841306e+17 Attoliter (aL).
| Cup (UK) (cup (UK)) | Attoliter (aL) |
|---|---|
| 0.1 | 2.841306e+16 |
| 0.5 | 1.420653e+17 |
| 1 | 2.841306e+17 |
| 2 | 5.682613e+17 |
| 5 | 1.420653e+18 |
| 10 | 2.841306e+18 |
| 25 | 7.103266e+18 |
| 50 | 1.420653e+19 |
| 100 | 2.841306e+19 |
| 500 | 1.420653e+20 |
| 1000 | 2.841306e+20 |
The UK (imperial) cup is a unit of volume equal to 10 UK fluid ounces, or approximately 284.131 milliliters.
1 UK cup = 10 UK fl oz = 1/2 UK pint = 284.131 mL ≈ 1.2 US cups.
To mL: multiply by 284.131. To US cups: multiply by 1.201. To liters: multiply by 0.284131.
Older British cookbooks, some Commonwealth recipes (especially pre-metric era), and traditional baking.
The UK cup is 20% larger than the US cup. A recipe calling for 1 UK cup actually requires about 1.2 US cups.
Using a US cup measure for a UK recipe — the 20% difference can ruin baked goods. Check the recipe's origin.
UK kitchens rarely use cups now — most British recipes specify grams and mL. If you see 'cups' in a UK recipe, it's 284 mL.
The attoliter is an extremely small unit of volume equal to 10⁻¹⁸ liters, or one quintillionth of a liter.
1 aL = 10⁻¹⁸ L = 10⁻²¹ m³ = 10⁻¹⁵ µL. One femtoliter = 1,000 aL.
To liters: multiply by 10⁻¹⁸. To femtoliters: divide by 1,000. To cubic nanometers: 1 aL = 10⁶ nm³.
Measuring individual molecular reaction volumes, nano-droplet volumes, and single-cell compartments.
A typical virus capsid can enclose a volume of just a few attoliters. The interior of a ribosome is measured in attoliters.
Confusing attoliters with femtoliters — there are 1,000 aL in 1 fL. The scale difference is enormous.
Prefix ladder: milli → micro → nano → pico → femto → atto. Each step is 10⁻³ smaller than the last.



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