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Cubic Inches to Cubic Centimeters Converter

1 cubic inch is exactly 16.387064 cubic centimeters. To convert cubic inches to cubic centimeters, multiply by 16.387064.

Sources: NIST SP 811, NIST Handbook 44, BIPM SI Brochure Updated

Result

1 in³ = 16.3871 cm³

How to convert cubic inches to cubic centimeters

cubic centimeters = cubic inches × 16.387064

1 cubic inch is exactly 16.387064 cubic centimeters (2.54³). 1 cubic centimeter is exactly 1 milliliter.

The factor 16.387064 is exact, not a rounded value. Nothing is rounded until you choose how many decimals to show.

Worked example: 350 in³

  1. Start with the value in cubic inches: 350 in³.
  2. Multiply by 16.387064, because 1 cubic inch = 16.387064 cubic centimeters: 350 × 16.387064 = 5,735.4724 cm³.
  3. Round to the precision you need: 5,735.47 cm³ to two decimals.

Cubic Inches and cubic centimeters side by side

in³cm³012345678910020406080100120140160
Cubic Inches on top, cubic centimeters below, lined up with the exact factor. The line marks the value in the converter. Drawn to proportion, not to actual size.

Cubic Inches to cubic centimeters chart

Cubic inches from 1 to 100 converted to cubic centimeters with the exact factor, shown to five significant digits.

Cubic Inches to cubic centimeters, part 1 of 4
in³cm³
116.387
232.774
349.161
465.548
581.935
698.322
7114.71
8131.1
9147.48
10163.87
11180.26
12196.64
13213.03
14229.42
15245.81
16262.19
17278.58
18294.97
19311.35
20327.74
21344.13
22360.52
23376.9
24393.29
25409.68
Cubic Inches to cubic centimeters, part 2 of 4
in³cm³
26426.06
27442.45
28458.84
29475.22
30491.61
31508
32524.39
33540.77
34557.16
35573.55
36589.93
37606.32
38622.71
39639.1
40655.48
41671.87
42688.26
43704.64
44721.03
45737.42
46753.8
47770.19
48786.58
49802.97
50819.35
Cubic Inches to cubic centimeters, part 3 of 4
in³cm³
51835.74
52852.13
53868.51
54884.9
55901.29
56917.68
57934.06
58950.45
59966.84
60983.22
61999.61
621,016
631,032.4
641,048.8
651,065.2
661,081.5
671,097.9
681,114.3
691,130.7
701,147.1
711,163.5
721,179.9
731,196.3
741,212.6
751,229
Cubic Inches to cubic centimeters, part 4 of 4
in³cm³
761,245.4
771,261.8
781,278.2
791,294.6
801,311
811,327.4
821,343.7
831,360.1
841,376.5
851,392.9
861,409.3
871,425.7
881,442.1
891,458.4
901,474.8
911,491.2
921,507.6
931,524
941,540.4
951,556.8
961,573.2
971,589.5
981,605.9
991,622.3
1001,638.7

cubic centimeters = cubic inches × 16.387064. Factors: NIST SP 811, NIST Handbook 44, BIPM SI Brochure. unitcheck.net/volume/cubic-inches-to-cubic-centimeters/

Engine sizes

Engine displacement is the usual reason for this conversion: older American engines are named in cubic inches, modern ones in cubic centimeters or liters. 350 in³ is 5,735 cm³, or 5.74 L.

Frequently asked questions

How many cubic centimeters are in 1 cubic inch?

1 cubic inch is exactly 16.387064 cubic centimeters. 1 cubic centimeter is exactly 1 milliliter.

How do I convert cubic inches to cubic centimeters?

Multiply by 16.387064: cubic centimeters = cubic inches × 16.387064. For example, 350 in³ = 5,735.47 cm³.

How many cubic inches are in 1 cubic centimeter?

1 cubic centimeter is about 0.0610237 cubic inches. Press Swap on the converter to go the other way.

Is the in³ to cm³ conversion exact?

Yes. 1 cubic centimeter is exactly 1 milliliter. The factor 16.387064 follows from the definitions, so the only rounding is in the number of decimals you display.

Sources