Instant · Precise · Universal
47 units available
6 categories total
To liters: multiply by 10⁻¹⁸. To femtoliters: divide by 1,000. To cubic nanometers: 1 aL = 10⁶ nm³.
1 aL = 10⁻¹⁸ L = 10⁻²¹ m³ = 10⁻¹⁵ µL. One femtoliter = 1,000 aL.
For example, 1 Attoliter (aL) = 1.689363e-16 Teaspoon (UK) (tsp (UK)).
| Attoliter (aL) | Teaspoon (UK) (tsp (UK)) |
|---|---|
| 0.1 | 1.689363e-17 |
| 0.5 | 8.446816e-17 |
| 1 | 1.689363e-16 |
| 2 | 3.378727e-16 |
| 5 | 8.446816e-16 |
| 10 | 1.689363e-15 |
| 25 | 4.223408e-15 |
| 50 | 8.446816e-15 |
| 100 | 1.689363e-14 |
| 500 | 8.446816e-14 |
| 1000 | 1.689363e-13 |
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.
The UK teaspoon is a unit of culinary volume equal to approximately 5.919 milliliters, slightly larger than its US counterpart.
1 UK tsp ≈ 5.919 mL. Approximately 1.2 times the US teaspoon (4.929 mL).
To mL: multiply by 5.919. To US teaspoons: multiply by 1.201. To metric teaspoons: multiply by 1.184.
Traditional British recipes, Commonwealth cooking, and older pharmaceutical dosing in the UK.
The UK teaspoon is about 20% larger than the US teaspoon. A recipe calling for 5 UK teaspoons would need 6 US teaspoons.
Assuming UK and US teaspoons are the same — the UK teaspoon is about 20% larger. This matters in precise baking.
Modern UK recipes increasingly use metric (5 mL teaspoons). When following older UK recipes, a UK tsp ≈ 6 mL.



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