What is 1 g in m/s²?

Standard gravity (g) is defined as exactly 9.80665 m/s². This is the nominal gravitational acceleration at Earth's surface at sea level and 45° latitude. Actual surface gravity varies from about 9.764 m/s² at the equator to 9.832 m/s² at the poles.

How many g-forces can a human withstand?

Trained fighter pilots in anti-G suits can withstand about 9 g briefly. Untrained people lose consciousness (G-LOC) at about 4–5 g sustained. Astronauts during launch experience about 3 g. Roller coasters typically produce 3–5 g at peak.

What is a Gal in seismology?

The Gal (symbol: Gal) equals 1 cm/s² = 0.01 m/s². It is the CGS unit of acceleration used in gravimetry and seismology, named after Galileo. Ground motion during earthquakes is often measured in Gal or milliGal (mGal).

What acceleration does a car experience during a crash?

In a 30 mph (48 km/h) crash that stops within 0.1 seconds, the deceleration is about 13.4 m/s² ≈ 1.37 g. High-speed crashes can involve 20–100 g peak accelerations over very short durations.

How does acceleration relate to force?

Newton's Second Law: F = ma. Force (newtons) equals mass (kg) times acceleration (m/s²). A 70 kg person on Earth feels a gravitational force of 70 × 9.80665 = 686.5 N (their weight).

Conversions

↵ to calculate

Acceleration Converter - m/s² to ft/s² Conversion Online

Convert between m/s², cm/s², ft/s², g-force, Gal, and more acceleration units instantly.

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How to use this calculator

👉 Fill in the boxes below and your answer appears instantly — no maths needed, we do it all for you! 🎉

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In plain English — what does this do?

📏 Some countries say ‘30 degrees’ and others say ‘86 degrees’ for the same weather! Some say ‘5 km’, others say ‘3 miles’. This tool swaps between them instantly so you always know what it means.

📌 Direct Answer & Summary

An acceleration converter lets you switch between units of acceleration — the rate of change of velocity. The SI unit is metres per second squared (m/s²). G-force (g) compares acceleration to standard gravity (9.80665 m/s²) and is used in aviation and motorsport. The Gal (cm/s²) is used in geophysics for gravity measurements.

Value

From

What is Acceleration Converter - m/s² to ft/s² Conversion Online?

How to use it

1️⃣ Enter the acceleration value in the Value field.
2️⃣ Select the unit you are converting from in the From dropdown.
3️⃣ Select the unit you want to convert to in the To dropdown.
4️⃣ The result and a full table of all equivalent accelerations appear instantly.
5️⃣ Click the swap button to reverse the conversion.

Formula

converted = input_value * (factor_of_from_unit / factor_of_to_unit), where all factors are expressed relative to m/s²

💡 See it in action — a real example

Standard gravity is 1 g = 9.80665 m/s² = 32.174 ft/s² = 980.665 Gal. A car braking hard at 0.8 g = 7.845 m/s² = 25.74 ft/s².

❓ Common questions

What is 1 g in m/s²?: Standard gravity (g) is defined as exactly 9.80665 m/s². This is the nominal gravitational acceleration at Earth's surface at sea level and 45° latitude. Actual surface gravity varies from about 9.764 m/s² at the equator to 9.832 m/s² at the poles.
How many g-forces can a human withstand?: Trained fighter pilots in anti-G suits can withstand about 9 g briefly. Untrained people lose consciousness (G-LOC) at about 4–5 g sustained. Astronauts during launch experience about 3 g. Roller coasters typically produce 3–5 g at peak.
What is a Gal in seismology?: The Gal (symbol: Gal) equals 1 cm/s² = 0.01 m/s². It is the CGS unit of acceleration used in gravimetry and seismology, named after Galileo. Ground motion during earthquakes is often measured in Gal or milliGal (mGal).
What acceleration does a car experience during a crash?: In a 30 mph (48 km/h) crash that stops within 0.1 seconds, the deceleration is about 13.4 m/s² ≈ 1.37 g. High-speed crashes can involve 20–100 g peak accelerations over very short durations.
How does acceleration relate to force?: Newton's Second Law: F = ma. Force (newtons) equals mass (kg) times acceleration (m/s²). A 70 kg person on Earth feels a gravitational force of 70 × 9.80665 = 686.5 N (their weight).

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