Cubic metric volume unit.
Cubic Gigameters to Cubic Hectometers Converter — Gm3 to hm3
Convert Cubic Gigameter (Gm3) to Cubic Hectometer (hm3) using the exact conversion factor (1 cubic gigameter = 1e+21 cubic hectometer). See the formula, worked examples, and conversion table.
Cubic Gigameters to Cubic Hectometers converter
Converter
Volume Converter
Convert metric, US customary, imperial, cooking, dry, and industrial volume units.
Context values
Some unit families need one extra value for a physically accurate result.
Cubic metric volume unit.
Result = input x 1e+27 / 1e+6.
Volume uses the cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Cubic Gigameters to Cubic Hectometers
Cubic Gigameter and Cubic Hectometer appear side by side at fuel pumps and on beverage labels, since the US measures liquids in gallons while most of the world uses liters. Both are cubic metric volume unit units.
Formula
cubic hectometers = cubic gigameters × 1e+21
This factor comes from each unit's defined relationship to the category's base unit: 1 cubic gigameter equals 1e+27 base units, and 1 cubic hectometer equals 1000000 base units, so dividing one by the other gives the direct cubic gigameter-to-cubic hectometer factor of 1e+21.
Simple example
1 Gm3 × 1e+21 = 1e+21 hm3
1 cubic gigameter = 1e+21 cubic hectometers.
Real-world example
10 Gm3 × 1e+21 = 1e+22 hm3
10 cubic gigameters = 1e+22 cubic hectometers.
Conversion table
| Cubic Gigameter (Gm3) | Cubic Hectometer (hm3) |
|---|---|
| 1 Gm3 | 1e+21 hm3 |
| 5 Gm3 | 5e+21 hm3 |
| 10 Gm3 | 1e+22 hm3 |
| 25 Gm3 | 2.5e+22 hm3 |
| 50 Gm3 | 5e+22 hm3 |
| 100 Gm3 | 1e+23 hm3 |
Reverse conversion: Cubic Hectometer to Cubic Gigameter
1e+21 hm3 × 1e-21 = 1 Gm3
1e+21 cubic hectometers = 1 cubic gigameter.
cubic gigameters = cubic hectometers × 1e-21
For a page dedicated to this direction, see Cubic Hectometer to Cubic Gigameter.
Understanding the Cubic Gigameter (Gm3)
Cubic metric volume unit.
Understanding the Cubic Hectometer (hm3)
Cubic metric volume unit.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many cubic hectometers are in 1 cubic gigameter?
1 cubic gigameter equals 1e+21 cubic hectometers, using the exact defined conversion factor rather than an estimate.
How do I convert cubic gigameter to cubic hectometer?
Multiply the cubic gigameter value by 1e+21. The converter above does this instantly to whatever precision you set.
How do I convert cubic hectometer back to cubic gigameter?
Use the reverse factor: 1 cubic hectometer equals 1e-21 cubic gigameters. You can also use the swap control in the converter above to flip the direction instantly.
What is a cubic gigameter?
Cubic Gigameter (Gm3) is a unit of volume.
What is a cubic hectometer?
Cubic Hectometer (hm3) is a unit of volume.
Is the cubic gigameter to cubic hectometer conversion exact?
Yes. Both cubic gigameter and cubic hectometer are defined by fixed standards rather than physical artifacts, so the factor of 1e+21 used above is exact to as many digits as you choose to display.