ft3 to mL Conversion
US sizes use cubic feet, while the rest of the world uses mL and liters. Multiply ft³ by 28,316.85 to switch.
Quick answer: multiply the volume in ft³ by 28,316.85. For example, 1 ft³ is 28,316.85 mL, 2 ft³ is 56,633.69 mL and 10 ft³ is 283,168.47 mL.
The ft³ to mL formula
One cubic foot is 28.316846592 L (Wikipedia: Cubic foot).
One liter is 1,000 mL, so multiply the ft³ by 28,316.85 to get mL.
Take 1 ft³. Multiply by 28,316.85. The answer is 28,316.85 mL.
Take 2 ft³. Multiply by 28,316.85. The answer is 56,633.69 mL.
Cubic feet to milliliters
A cubic foot is a cube 1 foot on each side. It is 28.316846592 L (Wikipedia: Cubic foot).
A milliliter is one thousandth of a liter, or 1 cm³ (Wikipedia: Litre).
The factor 28,316.85 joins the two.
How to convert ft³ to mL step by step
- Write down the volume in ft³.
- Multiply it by 28,316.85.
- The answer is in mL.
- Check it against the chart above.
Example 1: 1 ft³
- Start with 1 ft³.
- 1 × 28,316.85 = 28,316.85.
- The volume is 28,316.85 mL.
1 ft³ = 28,316.85 mL
Example 2: 2 ft³
- Start with 2 ft³.
- 2 × 28,316.85 = 56,633.69.
- The volume is 56,633.69 mL.
2 ft³ = 56,633.69 mL
Example 3: 10 ft³
- Start with 10 ft³.
- 10 × 28,316.85 = 283,168.47.
- The volume is 283,168.47 mL.
10 ft³ = 283,168.47 mL
A cubic foot is 28.316846592 L, and 1 mL is 1 cm³ (Wikipedia: Cubic foot, Litre).
ft³ to mL conversion table
| ft³ | mL | L |
|---|---|---|
| 0.1 ft³ | 2,831.68 mL | 2.832 L |
| 0.5 ft³ | 14,158.42 mL | 14.158 L |
| 1 ft³ | 28,316.85 mL | 28.317 L |
| 2 ft³ | 56,633.69 mL | 56.634 L |
| 5 ft³ | 141,584.23 mL | 141.58 L |
| 10 ft³ | 283,168.47 mL | 283.17 L |
| 50 ft³ | 1,415,842.33 mL | 1,415.84 L |
| 100 ft³ | 2,831,684.66 mL | 2,831.68 L |
The highlighted row, 1 ft³, is the default of the converter. The last column gives L.
A quick mental shortcut for ft³ to mL
A cubic foot is about 28 liters. So multiply the ft³ by 28,000 for a quick guess.
The exact answer is a little higher.
What ft³ measure
A cubic foot is a cube 1 foot on each side. It is 28.316846592 L (Wikipedia: Cubic foot).
Rooms, tanks and fridges are often sized in it.
What mL measure
A milliliter is one thousandth of a liter, or 1 cm³ (Wikipedia: Litre).
Medicine cups and small bottles use it.
Fridges and freezers
A fridge of 18 ft³ holds about 509.7 L.
In mL that is about 509,703.
Liters in between
A cubic foot holds 28.316846592 L (Wikipedia: Cubic foot).
So 1 ft³ is 28.317 L and 28,316.85 mL.
Milliliters and cm³
A milliliter is the same as 1 cm³ (Wikipedia: Litre).
So 1 ft³ is also 28,316.85 cm³.
Cubic inches
A cubic foot holds 1,728 cubic inches (Wikipedia: Cubic foot).
Each cubic inch is 16.387064 mL (Wikipedia: Cubic inch).
Why multiply by 28,316.85
One cubic foot is 28.316846592 L, and each liter is 1,000 mL.
Together that is 28,316.85 mL.
Going the other way
To go back, divide the mL by 28,316.85.
So 56,633.69 mL is 2 ft³.
Check your answer
Your mL number should be about 28,000 times bigger than the ft³ number.
Divide it by 28,316.85 and you should get your first number.
More values at a glance
0.5 cubic feet is 14,158.42 millilitres. 2 cubic feet is 56,633.69 millilitres. 5 cubic feet is 141,584.23 millilitres.
10 cubic feet is 283,168.47 millilitres. 25 cubic feet is 707,921.17 millilitres. 100 cubic feet is 2,831,684.66 millilitres.
Each answer is the input times 28,316.85. You can use the same factor for any value that is not listed here.
The unit sizes
One of the cubic feet equals 28,316.85 millilitres. One of the millilitres equals 3.5315 × 10⁻⁵ cubic feet.
If a result looks very large or very small, compare it with these sizes before you use it.
Checking in reverse
Take 283,168.47 millilitres and divide by 28,316.85. You get back 10 cubic feet. If you do not, one of the numbers was typed or rounded wrongly.
Quick conversion answers
| Conversion | Result |
|---|---|
| 0.5 ft³ | 14,158.42 mL |
| 1 ft³ | 28,316.85 mL |
| 2 ft³ | 56,633.69 mL |
| 5 ft³ | 141,584.23 mL |
| 10 ft³ | 283,168.47 mL |
| 100 ft³ | 2,831,684.66 mL |
Round numbers for ft³ and mL
Use these round numbers to check your own answer. 5 ft³ is 141,600 mL, 50 ft³ is 1,416,000 mL and 500 ft³ is 14,160,000 mL.
Going the other way, 500,000 mL is 17.66 ft³, 5,000,000 mL is 176.6 ft³ and 50,000,000 mL is 1,766 ft³.
A round trip with ft³
Say you start with 37 ft³. It becomes 1,048,000 mL. Divide that by the factor and you land on 37 ft³ again.
Now start from 25,000,000 mL instead. It becomes 882.9 ft³, and multiplying by the factor returns 25,000,000 mL.
Where this conversion is used
Cubic feet measure the size of tanks, bins and rooms.
Bottles, syringes and medicine cups show mL.
Common mistakes to avoid
- Mixing length and volume. A cubic unit is length times length times length.
- Using the wrong direction. Here 0.5 ft³ is 14,158.42 mL, so a correct answer comes out bigger than the number you start with.
- Rounding too early. The answer for 1 ft³ is 28,316.85 mL. Cut it to 28,000 mL and you are off by about 1.1 percent, and the gap grows if you reuse it.
- Using the inverse factor. The factor is 28,316.85. If you divide by it instead of multiplying, 10 ft³ becomes 0.0003531 mL instead of 283,200 mL.
Related converters
A small chest freezer
A freezer of 5 ft³ holds about 141.58 L.
In mL that is 141,584.23.
A fish tank
A tank of 2 ft³ holds about 56.634 L.
In mL that is 56,633.69.
Frequently asked questions
How do I convert cubic feet to mL?
Multiply the cubic feet by 28,316.85.
How many mL is 1 cubic foot?
About 28,316.85 mL.
How many liters is 1 cubic foot?
About 28.317 L.
How many mL is 10 cubic feet?
About 283,168.47 mL.
How many cubic inches is a cubic foot?
1,728 cubic inches.
Is a mL the same as a cm³?
Yes. 1 mL is 1 cm³.
Sources
- Wikipedia: Cubic foot (en.wikipedia.org)
- Wikipedia: Litre (en.wikipedia.org)
- Wikipedia: Cubic inch (en.wikipedia.org)
