Case 1
- Acceleration to convert
- 1
- From unit
- Standard gravity (g)
- To unit
- Metre per second² (m/s²)
9.806650
Open with these valuesAcceleration Converter
9.806650
Result: 9.806650One g is exactly 9.80665 m/s² — a fixed convention, not a measurement, so it does not change with where you stand. One galileo is 0.01 m/s², the CGS unit geophysics uses. km/h/s and mph/s say how much speed a vehicle gains each second.
Most-used pairs
each is its own pageg to metres per second²1 g = 9.80665 m/s²Metres per second² to g1 m/s² = 0.101972 gFeet per second² to m/s²1 ft/s² = 0.3048 m/s²m/s² to feet per second²1 m/s² = 3.28084 ft/s²km/h per second to m/s²1 km/h/s = 0.277778 m/s²mph per second to m/s²1 mph/s = 0.44704 m/s²
All 6 units
| Unit | Symbol | In m/s² | Typical use |
|---|---|---|---|
| Metre per second squared | m/s² | 1 | The SI unit of acceleration |
| Foot per second squared | ft/s² | 0.3048 | US engineering and aviation |
| Standard gravity | g | 9.80665 | Pilots, roller coasters, crash tests |
| Galileo | Gal | 0.01 | Geophysics and gravimetry |
| Km/h per second | km/h/s | 0.277777778 | Speed a car gains each second |
| Mph per second | mph/s | 0.44704 | Speed gain per second in mph |
Standard gravity to Metre per second squared
prints complete- 1 g
- 9.80665 m/s²
- 2 g
- 19.6133 m/s²
- 3 g
- 29.41995 m/s²
- 4 g
- 39.2266 m/s²
- 5 g
- 49.03325 m/s²
- 6 g
- 58.8399 m/s²
- 7 g
- 68.64655 m/s²
- 8 g
- 78.4532 m/s²
- 9 g
- 88.25985 m/s²
- 10 g
- 98.0665 m/s²
- 11 g
- 107.87315 m/s²
- 12 g
- 117.6798 m/s²
- 13 g
- 127.48645 m/s²
- 14 g
- 137.2931 m/s²
- 15 g
- 147.09975 m/s²
- 16 g
- 156.9064 m/s²
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Worked examples
Case 2
- Acceleration to convert
- 25
- From unit
- Kilometre per hour per second (km/h/s)
- To unit
- Metre per second² (m/s²)
6.944444
Open with these valuesCase 3
- Acceleration to convert
- 1
- From unit
- Standard gravity (g)
- To unit
- Foot per second² (ft/s²)
32.174049
Open with these valuesHow it's calculated
result = value × (m/s² per from-unit) ÷ (m/s² per to-unit)
- StepEnter the acceleration you already have.
- StepChoose the unit it is written in under From unit.
- StepChoose the unit you want under To unit.
- ResultRead the result — it is already in the unit you chose.
Reference table
| One unit | Expressed in | Exact factor |
|---|---|---|
| 1 g | m/s² | 9.80665 |
| 1 ft/s² | m/s² | 0.3048 |
| 1 Gal | m/s² | 0.01 |
| 1 km/h/s | m/s² | 0.277778 |
| 1 mph/s | m/s² | 0.44704 |
Questions
How do I convert one acceleration unit to another?
Enter your value, choose the unit you have under From unit and the unit you want under To unit. The value is turned into metres per second squared first and then into the target unit, so any pair converts in one step.
How do I convert g to m/s²?
Multiply the value in g by 9.80665, so 1 g is exactly 9.80665 m/s². A 3 g turn, the kind a fighter pilot feels, is therefore about 29.42 m/s². To go the other way, divide the m/s² value by 9.80665.
What is the difference between m/s² and g?
The metre per second squared is the SI unit — the rate at which speed changes each second. The g is a reference equal to standard gravity, 9.80665 m/s². Engineers calculate in m/s², while pilots and roller-coaster designers use g to say how many times Earth's pull a force feels like.
What is one galileo (Gal)?
The galileo is the CGS unit used in geophysics and gravimetry: 1 Gal is 0.01 m/s². Earth's gravity is roughly 980 Gal, and surveyors map tiny variations in milligal. It is named after Galileo Galilei, who first studied free fall.
What does km/h/s mean for a car?
It is how many km/h the speed climbs each second, so it describes how briskly a car accelerates: 1 km/h/s is 0.277778 m/s². A car doing 0 to 100 km/h in 4 seconds averages 25 km/h/s, about 6.94 m/s² or roughly 0.71 g.
Sources and last check
Information, not professional advice.