Decameter is 10 meter units.
Decameters to Gigameters Converter — dam to Gm
Convert Decameter (dam) to Gigameter (Gm) using the exact conversion factor (1 decameter = 1e-8 gigameter). See the formula, worked examples, and conversion table.
Decameters to Gigameters converter
Converter
Length Converter
Convert SI, imperial, US customary, astronomical, scientific, and historical length units.
Context values
Some unit families need one extra value for a physically accurate result.
Gigameter is 1000000000 meter units.
Result = input x 10 / 1e+9.
Length uses the meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Decameters to Gigameters
Decameter and Gigameter both measure length. Specifically: Decameter is 10 meter units, and gigameter is 1000000000 meter units.
Formula
gigameters = decameters × 1e-8
This factor comes from each unit's defined relationship to the category's base unit: 1 decameter equals 10 base units, and 1 gigameter equals 1000000000 base units, so dividing one by the other gives the direct decameter-to-gigameter factor of 1e-8.
Simple example
1 dam × 1e-8 = 1e-8 Gm
1 decameter = 1e-8 gigameters.
Real-world example
10 dam × 1e-8 = 1e-7 Gm
10 decameters = 1e-7 gigameters.
Conversion table
| Decameter (dam) | Gigameter (Gm) |
|---|---|
| 1 dam | 1e-8 Gm |
| 5 dam | 5e-8 Gm |
| 10 dam | 1e-7 Gm |
| 21.0975 dam | 2.10975e-7 Gm |
| 42.195 dam | 4.2195e-7 Gm |
| 100 dam | 0.000001 Gm |
Reverse conversion: Gigameter to Decameter
1e-8 Gm × 100000000 = 1 dam
1e-8 gigameters = 1 decameter.
decameters = gigameters × 100000000
For a page dedicated to this direction, see Gigameter to Decameter.
Understanding the Decameter (dam)
Decameter is 10 meter units.
Understanding the Gigameter (Gm)
Gigameter is 1000000000 meter units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many gigameters are in 1 decameter?
1 decameter equals 1e-8 gigameters, using the exact defined conversion factor rather than an estimate.
How do I convert decameter to gigameter?
Multiply the decameter value by 1e-8. The converter above does this instantly to whatever precision you set.
How do I convert gigameter back to decameter?
Use the reverse factor: 1 gigameter equals 100,000,000 decameters. You can also use the swap control in the converter above to flip the direction instantly.
What is a decameter?
Decameter (dam) is a unit of length.
What is a gigameter?
Gigameter (Gm) is a unit of length.
Is the decameter to gigameter conversion exact?
Yes. Both decameter and gigameter are defined by fixed standards rather than physical artifacts, so the factor of 1e-8 used above is exact to as many digits as you choose to display.