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) = 1.056688e-18 Quart (US) (qt (US)).
| Attoliter (aL) | Quart (US) (qt (US)) |
|---|---|
| 0.1 | 1.056688e-19 |
| 0.5 | 5.283441e-19 |
| 1 | 1.056688e-18 |
| 2 | 2.113376e-18 |
| 5 | 5.283441e-18 |
| 10 | 1.056688e-17 |
| 25 | 2.641721e-17 |
| 50 | 5.283441e-17 |
| 100 | 1.056688e-16 |
| 500 | 5.283441e-16 |
| 1000 | 1.056688e-15 |
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 US liquid quart is a unit of volume equal to 32 US fluid ounces, or approximately 946.353 milliliters.
1 US qt = 2 US pt = 4 US cups = 32 US fl oz = 1/4 US gallon ≈ 946.353 mL.
To liters: multiply by 0.946353. To mL: multiply by 946.353. To UK quarts: multiply by 0.832674.
Buying motor oil (sold by the quart), milk containers, paint coverage calculations, and cooking large recipes.
A US quart is slightly less than 1 liter (946 mL vs. 1,000 mL). Saying 'a quart is about a liter' is a useful rough approximation.
Assuming a quart equals a liter — it's close but 5.4% smaller. When substituting in recipes, this error accumulates.
A quart is roughly a liter. 'Quart' comes from 'quarter' — it's 1/4 gallon. Chain: 4 cups → 2 pints → 1 quart → 1/4 gallon.



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