One cubic foot is exactly 28,316,846.59 microliters, so converting cubic feet to microliters is a single multiplication. Enter any figure and the result appears as you type — the arithmetic runs in your browser, so nothing is sent anywhere.
One millionth of a litre — the pipetting unit of every wet lab. The volume of a one-foot cube — used for shipping, refrigerators and natural gas.
US and imperial measures share names and do not share sizes. The imperial gallon is 4.546 L against the US 3.785 L, and the imperial pint is 568 mL against 473 mL. A recipe or fuel figure is 20% out if the wrong gallon is used, so check which side of the Atlantic the number came from. Two tables follow: rounded steps for quick lookup, and a set of real reference quantities converted into microliters, which is usually more useful than the bare number.
The formula
cubic feet- The amount you are converting, in cubic feet
28,316,846.592- The exact number of microliters in one cubic foot
microliters- The converted result
How it works, step by step
- Enter the value in cubic feet.
- It is multiplied by 28,316,846.592, the exact factor between the two units.
- The answer is shown in microliters, with the reverse conversion beneath it.
- Check the reference table if you want a figure of comparable size.
Worked examples
A teaspoon: 0.000174 ft³ in microliters
A teaspoon comes to about 0.000174 ft³. Multiplying by the factor: 0.000174 × 2.83168e+07 = 4927.13 µL. Dividing the answer back by 2.83168e+07 returns the figure you started with, which is the quickest way to check you have the factor the right way up.
A car fuel tank: 1.94 ft³ in microliters
Take a car fuel tank, roughly 1.94 ft³. The conversion is a single multiplication — 1.94 × 2.83168e+07 — giving 5.49347e+07 µL. Because the relationship is proportional, doubling the input doubles the answer to 1.09869e+08 µL.
How to read your score
Frequently asked questions
How many microliters are in one cubic foot?
Exactly 28,316,846.592. Every figure on this page is that one number multiplied by your input, so the only rounding is at the display step.
What is the formula to convert cubic feet to microliters?
microliters = cubic feet × 28,316,846.592. Reversed, cubic feet = microliters ÷ 28,316,846.592, which is the same as multiplying by 3.53146667215e-08.
Which is the bigger unit, the cubic foot or the microliter?
The cubic foot. One cubic foot equals 2.83168e+07 microliters.
What does this quantity actually measure?
Both units measure volume. That is why a single factor is enough: there is no temperature offset and no material property involved, unlike conversions that cross between different quantities.
What is a cubic foot?
The volume of a one-foot cube — used for shipping, refrigerators and natural gas.
What is a microliter?
One millionth of a litre — the pipetting unit of every wet lab.
Why does my answer differ from another converter?
Almost always because the other tool rounded the factor before multiplying. This page keeps full double precision through the calculation and rounds only for display, and it prints the factor it used so you can see where any difference came from.
Is there a quick way to do ft³ to µL in my head?
Plenty of people do this in their head: multiply by 28000000.000000 instead of using the exact factor 28,316,846.59. At 100 that shortcut gives 2800000000.000000 microliters, off by 31684659.200000 microliters or about 1.12%. Fine for a rough estimate, not fine for anything you are cutting to size or dosing.
Cubic Feet to microliters reference tables
| Cubic Feet | Microliters |
|---|---|
| 0.5 ft³ | 1.41584e+07 µL |
| 1 ft³ | 2.83168e+07 µL |
| 2 ft³ | 5.66337e+07 µL |
| 3 ft³ | 8.49505e+07 µL |
| 5 ft³ | 1.41584e+08 µL |
| 10 ft³ | 2.83168e+08 µL |
| 20 ft³ | 5.66337e+08 µL |
| 25 ft³ | 7.07921e+08 µL |
| 50 ft³ | 1.41584e+09 µL |
| 75 ft³ | 2.12376e+09 µL |
| 100 ft³ | 2.83168e+09 µL |
| 250 ft³ | 7.07921e+09 µL |
| 500 ft³ | 1.41584e+10 µL |
| 1000 ft³ | 2.83168e+10 µL |
| 5000 ft³ | 1.41584e+11 µL |
Exact factor: 1 cubic foot = 28,316,846.592 microliters.
| Quantity | ft³ | µL |
|---|---|---|
| A teaspoon | 0.0001741 ft³ | 4929 µL |
| A soft-drink can | 0.01254 ft³ | 3.55e+05 µL |
| A wine bottle | 0.02649 ft³ | 7.5e+05 µL |
| A car fuel tank | 1.942 ft³ | 5.5e+07 µL |
| A domestic bath | 6.357 ft³ | 1.8e+08 µL |
| A ready-mix truck load | 211.9 ft³ | 6e+09 µL |
Published reference values, converted with the same factor this page uses.