加速度转换器

Convert g-force to m/s², m/s² to g, ft/s² and gal (cm/s²), using standard gravity g₀ = 9.80665 m/s² exactly.

更新于 2026年9月29日已验证的示例：4

转换后的数值

m/s²

有效数字：12；取最近值，等距时远离零

换算: 1 g = 9.80665 m/s²
换算系数: 9.80665
精确性: 精确

1 g精确等于9.80665 m/s²。

用各个单位表示同一个量

1 g用各个加速度单位表示行数：4

单位	数值	定义
metre per second squared (m/s²)	9.80665	基本单位
standard gravity (g)	1	1 g = 9.80665 m/s²，精确值
foot per second squared (ft/s²)	32.17405	1 ft/s² = 0.3048 m/s²，精确值
gal (galileo)	980.665	1 Gal = 0.01 m/s²，精确值

计算方法 S

将standard gravity换算为metre per second squared
$1\ \text{g} \times 9.80665\ \tfrac{\text{m/s$^{2}$}}{\text{g}} = 9.80665\ \text{m/s$^{2}$}$
1 g = 9.80665 m/s²，精确值
两个单位的定义都精确，且换算结果为有限小数，因此显示的每一位数字都精确。

关于加速度转换器

Acceleration is change of speed per unit time, and each unit here is a fixed number of metres per second squared. The g of g-force is standard gravity, g₀ = 9.80665 m/s², fixed by the 3rd CGPM in 1901; a foot per second squared is 0.3048 m/s², and a gal (galileo) is 1 cm/s².

The default converts 1 g to 9.80665 m/s². Vehicle performance is the everyday use: a car that reaches 100 km/h from rest in 3 seconds averages 9.26 m/s², or 0.94 g.

Standard gravity is a conventional value. Real free-fall acceleration runs from about 9.78 m/s² at the equator to 9.83 m/s² at the poles, and geophysicists measure its local variations in milligals.

计算示例

1 g in m/s²

数值: 1 g
从: standard gravity (g)
到: metre per second squared (m/s²)

转换后的数值: 9.80665 m/s²

核验来源：Standard gravity g₀ = 9.80665 m/s² exactly (CGPM 1901)

1 g in ft/s²

数值: 1 g
从: standard gravity (g)
到: foot per second squared (ft/s²)

转换后的数值: 32.1740485564 ft/s²

核验来源：9.80665 / 0.3048 = 196133/6096 (Python 3.8 fractions from the legal definitions)

1 gal in m/s²

数值: 1 Gal
从: gal (galileo)
到: metre per second squared (m/s²)

转换后的数值: 0.01 m/s²

核验来源：1 Gal = 1 cm/s² (NIST SP 811 App. B)

9.80665 m/s² is exactly 1 g

数值: 9.80665 m/s²
从: metre per second squared (m/s²)
到: standard gravity (g)

转换后的数值: 1 g
精确性: 精确

核验来源：Definition of g₀

常见问题

What is 1 g in m/s²?

Exactly 9.80665 m/s², the standard acceleration of gravity adopted by the 3rd General Conference on Weights and Measures in 1901. It equals 32.174 ft/s². Local gravity differs slightly; 9.80665 is the convention used for g-force and for units such as the kilogram-force.

How do I work out g-force from a 0–60 or 0–100 time?

Divide the speed gained by the time, then divide by 9.80665. 0–60 mph (26.8224 m/s) in 3 s averages 8.94 m/s², or 0.91 g; 0–100 km/h (27.78 m/s) in 3 s averages 9.26 m/s², or 0.94 g. The peak acceleration during the run is higher than this average.

What is a gal (Gal) in acceleration?

One centimetre per second squared, 0.01 m/s², named after Galileo. Earth's surface gravity is about 980 Gal, so gravity surveys work in milligals, where 1 mGal is about one millionth of g. The symbol is Gal, and the unit has nothing to do with the gallon.

How do I convert ft/s² to m/s²?

Multiply by 0.3048, the exact number of metres in a foot. 32.174 ft/s² is 9.80665 m/s² (1 g), and 10 ft/s² is 3.048 m/s². To go from m/s² to ft/s², divide by 0.3048, which is the same as multiplying by 3.28084.

Is gravity 9.81 m/s² everywhere?

No. Free-fall acceleration is about 9.780 m/s² at the equator and 9.832 m/s² at the poles, because the Earth spins and bulges at the equator, and it falls slightly with altitude. 9.81 is 9.80665 rounded, the conventional value between those extremes that g-force is measured against.

“加速度转换器”有多准确？

准确性取决于输入值和方法的假设。十进制运算使用50位有效数字，但估算、数值方法和源数据的精度可能较低；显示时的舍入并不能消除这些限制。已按独立来源核验的计算示例：4。例如，“1 g in m/s²”根据Standard gravity g₀ = 9.80665 m/s² exactly (CGPM 1901)进行核验。

这种方法出自哪里？

NIST SP 811 (2008), Guide for the Use of the SI, Appendix B — conversion factors; NIST Handbook 44, Appendix C — General tables of units of measurement.

关于此计算器

\begin{gathered} x_{\text{to}} = x_{\text{from}} \times \dfrac{f_{\text{from}}}{f_{\text{to}}} \\ f = \text{one unit expressed in } \text{m/s$^{2}$} \end{gathered}

来源

已对照来源验证

此计算器包含 4 个已解示例，答案来自独立来源。这些示例会在测试套件中运行，你也可以在此运行验证。