Instant · Precise · Universal
47 units available
6 categories total
To liters: multiply by 10⁻¹⁵. To picoliters: divide by 1,000. To attoliters: multiply by 1,000.
1 fL = 10⁻¹⁵ L = 10⁻¹² mL = 1,000 aL = 1 µm³ (cubic micrometer).
For example, 1 Femtoliter (fL) = 1.056688e-15 Quart (US) (qt (US)).
| Femtoliter (fL) | Quart (US) (qt (US)) |
|---|---|
| 0.1 | 1.056688e-16 |
| 0.5 | 5.283441e-16 |
| 1 | 1.056688e-15 |
| 2 | 2.113376e-15 |
| 5 | 5.283441e-15 |
| 10 | 1.056688e-14 |
| 25 | 2.641721e-14 |
| 50 | 5.283441e-14 |
| 100 | 1.056688e-13 |
| 500 | 5.283441e-13 |
| 1000 | 1.056688e-12 |
The femtoliter is a unit of volume equal to 10⁻¹⁵ liters, or one quadrillionth of a liter.
1 fL = 10⁻¹⁵ L = 10⁻¹² mL = 1,000 aL = 1 µm³ (cubic micrometer).
To liters: multiply by 10⁻¹⁵. To picoliters: divide by 1,000. To attoliters: multiply by 1,000.
Measuring red blood cell volumes (normal MCV: 80–100 fL), inkjet droplet sizes, and flow cytometry particle analysis.
A human red blood cell has a volume of about 90 fL. The smallest inkjet droplets are in the range of 1–5 fL.
Assuming fL is too small to be practical — it is actually the standard unit used on every complete blood count (CBC) lab report.
Remember: fL = femtoliter, the volume of blood cells. Normal MCV range: 80–100 fL. It's a key clinical measurement.
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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