Direct conversion
Convert cubic foot [ft³] to cubic inch [in³] instantly with formula, examples, chart, and FAQs.
1 cubic foot [ft³] = 1728 cubic inch [in³]
1 cubic foot [ft³] = 1728 cubic inch [in³]
Example: 1 cubic foot [ft³] equals 1728 cubic inch [in³].
Volume conversions use cubic metre as the reference unit. US liquid units, metric litres, and cubic units are converted with fixed factors stored in the unit table.
Displayed results are rounded for readability. The calculator keeps enough precision for everyday use and switches to scientific notation for very large or very small values. Last reviewed: 2026-08-14.
The cubic foot is a volume unit equal to the space inside a cube one foot on each side.
HistoryCubic feet come from foot-based customary measurement and are used for three-dimensional capacity.
Current useCubic feet are used for refrigerators, shipping boxes, storage, construction materials, and airflow ratings.
The cubic inch (in³) is a volume unit used to express measurements in this converter.
HistoryThis unit is included because it appears in practical measurement systems, technical references, product specifications, or everyday conversion needs.
Current useUse cubic inch when comparing volume values, checking specifications, converting between systems, or preparing quick estimates.
| cubic foot [ft³] | cubic inch [in³] |
|---|---|
| 1 | 1728 |
| 2 | 3456 |
| 5 | 8640 |
| 10 | 17280 |
| 20 | 34560 |
| 25 | 43200 |
| 50 | 86400 |
| 100 | 172800 |
| 1000 | 1728000 |
Use this formula: 1 cubic foot [ft³] = 1728 cubic inch [in³] Enter your value in the calculator and the result updates instantly.
1 cubic foot [ft³] equals 1728 cubic inch [in³].
Yes. Use the swap button in the calculator or open the related reverse conversion link when it is listed on this page.