Instant · Precise · Universal
34 units available
6 categories total
To convert to kilograms: multiply by 9.80665.
1 kgf·s²/m = 9.80665 kg (exactly), based on standard gravity g₀ = 9.80665 m/s².
For example, 1 Kilogram-force second²/meter (kgf·s²/m) = 0.00000980665 Gigagram (Gg).
| Kilogram-force second²/meter (kgf·s²/m) | Gigagram (Gg) |
|---|---|
| 0.1 | 9.806650e-7 |
| 0.5 | 0.000004903325 |
| 1 | 0.00000980665 |
| 2 | 0.0000196133 |
| 5 | 0.00004903325 |
| 10 | 0.0000980665 |
| 25 | 0.00024516625 |
| 50 | 0.0004903325 |
| 100 | 0.000980665 |
| 500 | 0.004903325 |
| 1000 | 0.00980665 |
The kilogram-force second squared per meter is an engineering unit of mass in the gravitational metric system, equal to about 9.807 kg.
1 kgf·s²/m = 9.80665 kg (exactly), based on standard gravity g₀ = 9.80665 m/s².
To convert to kilograms: multiply by 9.80665.
Historical engineering calculations where force was in kgf and F=ma needed consistent units.
This unit is the metric equivalent of the slug (imperial system). Just as 1 lb-force accelerates 1 slug at 1 ft/s², 1 kgf accelerates this unit at 1 m/s².
Mixing up mass (kg) and weight (kgf) in the gravitational system. SI removed this confusion by using newtons for force.
This unit exists because the gravitational system used kgf (force) as base, so a derived mass unit was needed for F=ma to work.
The gigagram is equal to 10⁹ grams or 1,000 tonnes (metric tons).
1 Gg = 10⁹ g = 10⁶ kg = 1,000 tonnes.
To convert Gg to tonnes: multiply by 1,000. To convert Gg to kg: multiply by 10⁶.
National emissions reports, large mining output figures, and major commodity trade volumes.
The Great Pyramid of Giza has an estimated mass of about 6,000 Gg (6 million tonnes).
Confusing Gg (gigagram) with GB (gigabyte). In mass contexts, G always means giga = 10⁹.
1 Gg = 1 kilotonne = 1,000 tonnes. Used when 'tonnes' gets unwieldy for very large masses.



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