100 cubic inches to US gallons
100 in³ = 0.43290043 gal. Change the amount below, or read the formula and the reference table further down.
100 cubic inches equals
US gallons
1 in³ = 0.004329 gal
The formula
Cubic inches and US gallons both measure volume from the same zero, so a single multiplier does the job.
gal = in³ × 0.0043290043
Going the other way? Convert US gallons to cubic inches.
Cubic inches to US gallons table
Values either side of 100 in³.
| Cubic inches (in³) | US gallons (gal) |
|---|---|
| 0 | 0 |
| 10 | 0.04329 |
| 20 | 0.08658 |
| 30 | 0.12987 |
| 40 | 0.17316 |
| 50 | 0.21645 |
| 60 | 0.25974 |
| 70 | 0.30303 |
| 80 | 0.34632 |
| 90 | 0.38961 |
| 100 | 0.4329 |
| 110 | 0.47619 |
| 120 | 0.519481 |
| 130 | 0.562771 |
| 140 | 0.606061 |
| 150 | 0.649351 |
| 160 | 0.692641 |
| 170 | 0.735931 |
| 180 | 0.779221 |
| 190 | 0.822511 |
| 200 | 0.865801 |
Questions people ask
- How many US gallons are in a cubic inch?
- One cubic inch equals 0.0043290043 US gallons.
- How do I convert cubic inches to US gallons by hand?
- Multiply the number of cubic inches by 0.0043290043. For a rough check, 0.004 is close enough for most everyday use.
- What is 100 cubic inches in US gallons?
- 100 cubic inches is 0.43290043 US gallons.
Calcuit generates this page from a unit table, so the factors here match every other page on the site.