Convert Cubic Millimeters to Gallons
Convert Cubic Millimeters (mm³) to Gallons (gal) instantly and accurately.
Conversion Formula
gal = mm³ × 2.641720524e-7
About Cubic Millimeters
A cubic millimeter (mm³) is the volume of a cube with sides of one millimeter - equal to one millionth of a liter (0.001 mL). Despite its tiny size, the cubic millimeter is an essential unit in engineering and science. In medicine, red blood cell counts are reported per cubic millimeter of blood (a healthy adult has roughly 5 million red blood cells per mm³). In 3D printing and CNC machining, material volumes and tolerances are routinely specified in mm³. A single raindrop is roughly 50 mm³, and a grain of table salt approximately 0.1 mm³.
About Gallons
A US gallon (gal) = 4 quarts = 128 fl oz ≈ 3.785 L. Gasoline, milk, water, paint, and pesticides are sold by the gallon in the US. About 20% smaller than the UK imperial gallon (4.546 L) - a critical difference when comparing fuel economy across the Atlantic. 1 US gal = 3.785 L = 4 qt = 128 fl oz.
Quick Reference Table
| Cubic Millimeters (mm³) | Gallons (gal) |
|---|---|
| 1 mm³ | 2.642 × 10-7 gal |
| 2 mm³ | 5.283 × 10-7 gal |
| 5 mm³ | 1.321 × 10-6 gal |
| 10 mm³ | 2.642 × 10-6 gal |
| 25 mm³ | 6.604 × 10-6 gal |
| 50 mm³ | 1.321 × 10-5 gal |
| 100 mm³ | 2.642 × 10-5 gal |