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Cubic Feet to Cubic Inches Converter

Convert cubic feet (cu ft) to cubic inches (in³), with the formula, a conversion table and exact factors.

Change the values and press Calculate to work out your own figures.

Enter a volume, choose its unit and the unit you want. The answer is exact until it is shown, and the same value appears in every other unit.

About valueA number, fraction (3/8), mixed number (1 1/2), scientific notation (2.5e6) or a simple sum such as 2*3.
About toThe unit you want the answer in. Swap exchanges the two units.
Result
Result
1,728 in³
US gallons
7.48051948052 gal
US liquid quarts
29.9220779221 qt
US liquid pints
59.8441558442 pt
US cups
119.688311688 cup
US fluid ounces
957.506493506 fl oz
US tablespoons
1,915.01298701 tbsp
US teaspoons
5,745.03896104 tsp
cubic miles
6.79357278014 × 10⁻¹² mi³
cubic yards
0.037037037037 cu yd
cubic kilometers
2.8316846592 × 10⁻¹¹ km³
cubic meters
0.028316846592 m³
liters
28.316846592 L
milliliters
28,316.846592 mL
cubic centimeters
28,316.846592 cm³
cubic millimeters
28,316,846.592 mm³
imperial gallons
6.22883545904 imp gal
imperial quarts
24.9153418362 imp qt
imperial pints
49.8306836723 imp pt
imperial fluid ounces
996.613673447 imp fl oz
imperial tablespoons
1,594.58187751 imp tbsp
imperial teaspoons
4,783.74563254 imp tsp
drops
566,336.93184 gtt

1 cu ft = 1,728 in³

Show the working
  1. 1 cu ft = 1728 in³
  2. 1 × 1728 = 1728 in³

How to convert cubic feet to cubic inches

1 cu ft = 1,728 in³, so multiply by 1,728 to go from cubic feet to cubic inches. Going the other way, 1 in³ = 0.000578703703704 cu ft.

in³ = cu ft × 1,728
cu ft = in³ × 0.000578703703704

Worked example:

1 cu ft = 1728 in³
5 × 1728 = 8640 in³

Cubic Feet to cubic inches table

Cubic FeetCubic Inches
1 cu ft1,728 in³
2 cu ft3,456 in³
3 cu ft5,184 in³
4 cu ft6,912 in³
5 cu ft8,640 in³
6 cu ft10,368 in³
7 cu ft12,096 in³
8 cu ft13,824 in³
9 cu ft15,552 in³
10 cu ft17,280 in³
15 cu ft25,920 in³
20 cu ft34,560 in³
25 cu ft43,200 in³
30 cu ft51,840 in³
40 cu ft69,120 in³
50 cu ft86,400 in³
75 cu ft129,600 in³
100 cu ft172,800 in³
250 cu ft432,000 in³
500 cu ft864,000 in³
1000 cu ft1,728,000 in³

About the units

Cubic Feet (cu ft)
Cubic feet, a US customary unit. Definition: NIST Handbook 44 Appendix C (international foot and avoirdupois pound).
Cubic Inches (in³)
Cubic inches, a US customary unit. Definition: NIST Handbook 44 (2024), Appendix C: General Tables of Units of Measurement.

Formula version 0.1.0Reviewed