Convert Yards Per Second Squared (yd/s²) to Feet Per Second Squared (ft/s²)

1 yard per second squared equals 3 feet per second squared.

Formula: ft/s² = yd/s² × 3

Yard Per Second Squared to Foot Per Second Squared Converter

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How to Convert Yard Per Second Squared to Foot Per Second Squared

1 yard per second squared = 3 feet per second squared

Foot Per Second Squared = Yard Per Second Squared × 3

Example: 1 yd/s² × 3 = 3 ft/s²

Reverse Conversion

To convert feet per second squared back to yards per second squared:

  • Remember, 1 foot per second squared equals 13 yards per second squared.
  • To convert 3 ft/s² to yd/s², multiply 3 x 13, resulting in 1 yd/s².

Common Yard Per Second Squared to Foot Per Second Squared Conversions

Yard Per Second Squared to Foot Per Second Squared (Part 1)
Yard Per Second Squared Foot Per Second Squared Actions
1 yard per second squared 3 feet per second squared
5 yards per second squared 15 feet per second squared
10 yards per second squared 30 feet per second squared
25 yards per second squared 75 feet per second squared
Yard Per Second Squared to Foot Per Second Squared (Part 2)
Yard Per Second Squared Foot Per Second Squared Actions
50 yards per second squared 150 feet per second squared
100 yards per second squared 300 feet per second squared
500 yards per second squared 1500 feet per second squared
1000 yards per second squared 3000 feet per second squared

Yards per second squared to feet per second squared Conversion Table

Reference table with common yards per second squared to feet per second squared conversions. All values calculated with high precision.

Yards Per Second Squared to Feet Per Second Squared Table
0.0001 to 12

Yards per second squared Feet per second squared Actions
0.0001 yd/s² 0.0003 ft/s²
0.00025 yd/s² 0.00075 ft/s²
0.0005 yd/s² 0.0015 ft/s²
0.001 yd/s² 0.003 ft/s²
0.0025 yd/s² 0.0075 ft/s²
0.005 yd/s² 0.015 ft/s²
0.01 yd/s² 0.03 ft/s²
0.025 yd/s² 0.075 ft/s²
0.05 yd/s² 0.15 ft/s²
0.1 yd/s² 0.3 ft/s²
14 yd/s² 34 ft/s²
12 yd/s² 12 ft/s²

Yards Per Second Squared to Feet Per Second Squared Table
1 to 100000

Yards per second squared Feet per second squared Actions
1 yd/s² 3 ft/s²
12 yd/s² 12 ft/s²
5 yd/s² 15 ft/s²
10 yd/s² 30 ft/s²
25 yd/s² 75 ft/s²
50 yd/s² 150 ft/s²
100 yd/s² 300 ft/s²
250 yd/s² 750 ft/s²
500 yd/s² 1500 ft/s²
1000 yd/s² 3000 ft/s²
2500 yd/s² 7500 ft/s²
5000 yd/s² 15000 ft/s²
10000 yd/s² 30000 ft/s²
25000 yd/s² 75000 ft/s²
50000 yd/s² 150000 ft/s²
100000 yd/s² 300000 ft/s²

Feet Per Second Squared to Yards Per Second Squared Table
0.001 to 5

Feet per second squared Yards per second squared Actions
0.001 ft/s² 0.000333333 yd/s²
0.0025 ft/s² 0.000833333 yd/s²
0.005 ft/s² 0.00166667 yd/s²
0.01 ft/s² 0.00333333 yd/s²
0.025 ft/s² 0.00833333 yd/s²
0.05 ft/s² 0.0166667 yd/s²
0.1 ft/s² 0.0333333 yd/s²
14 ft/s² 112 yd/s²
12 ft/s² 16 yd/s²
1 ft/s² 13 yd/s²
12 ft/s² 0.833333 yd/s²
5 ft/s² 23 yd/s²

Feet Per Second Squared to Yards Per Second Squared Table
10 to 1000000

Feet per second squared Yards per second squared Actions
10 ft/s² 13 yd/s²
25 ft/s² 13 yd/s²
50 ft/s² 16.6667 yd/s²
100 ft/s² 33.3333 yd/s²
250 ft/s² 83.3333 yd/s²
500 ft/s² 166.667 yd/s²
1000 ft/s² 333.333 yd/s²
2500 ft/s² 833.333 yd/s²
5000 ft/s² 1666.67 yd/s²
10000 ft/s² 3333.33 yd/s²
25000 ft/s² 8333.33 yd/s²
50000 ft/s² 16666.7 yd/s²
100000 ft/s² 33333.3 yd/s²
250000 ft/s² 83333.3 yd/s²
500000 ft/s² 166667 yd/s²
1000000 ft/s² 333333 yd/s²

Definition of Yard Per Second Squared

Yard per Second Squared: Imperial Acceleration Unit

The yard per second squared (yd/s²) is an Imperial unit of acceleration. While less common than ft/s² in engineering, it appears in some older US and British technical references. One yd/s² equals exactly 3 ft/s² or 0.9144 m/s².

Conversions to Other Units of Measurement:

  1. Meter per Second Squared (m/s²): 1 yd/s² = 0.9144 m/s² exactly (by definition of the international yard).
  2. Foot per Second Squared (ft/s²): 1 yd/s² = 3 ft/s² exactly.
  3. Standard Gravity (g): 1 yd/s² ≈ 0.09325 g. Standard gravity is approximately 10.728 yd/s².
  4. Inch per Second Squared (in/s²): 1 yd/s² = 36 in/s² exactly.

This unit provides a convenient scale for medium-range acceleration measurements in Imperial contexts, bridging the gap between ft/s² and larger units.

Definition
Imperial unit of acceleration; velocity change of 1 yard per second every second.
Exact factor
1 yd/s² = 0.9144 m/s²
Common equivalents
  • 1 yd/s² = 3 ft/s²
  • 1 yd/s² = 0.9144 m/s²
  • 1 yd/s² ≈ 0.0933 g
Context
Standard gravity equals approximately 10.73 yd/s²

Definition of Foot Per Second Squared

Foot per Second Squared: Imperial Acceleration Unit

The foot per second squared (ft/s²) is a unit of acceleration in the imperial and US customary systems. It represents the rate of change in velocity measured in feet per second for each second elapsed. This unit is commonly used in US engineering, aerospace, and automotive industries.

Conversions to Other Units of Measurement:

  1. Meter per Second Squared (m/s²): 1 ft/s² equals exactly 0.3048 m/s². This conversion follows from the international yard and pound agreement of 1959, where 1 foot = 0.3048 meters exactly.
  2. Standard Gravity (g): 1 ft/s² is approximately 0.03108 g. Earth's gravitational acceleration equals about 32.174 ft/s².
  3. Galileo (Gal): 1 ft/s² equals 30.48 Gal. This is useful when converting between imperial acceleration and CGS geodetic measurements.
  4. Inch per Second Squared (in/s²): 1 ft/s² equals exactly 12 in/s². This conversion is used in precision engineering applications.
  5. Mile per Hour per Second (mph/s): 1 ft/s² is approximately 0.6818 mph/s. This is relevant for vehicle acceleration specifications in the US.

The foot per second squared remains widely used in the United States for describing vehicle acceleration, ballistics, and aerospace applications.

Definition
Imperial/US unit of acceleration; change in velocity of 1 foot per second in 1 second.
Exact factor
1 ft/s² = 0.3048 m/s² (exact)
Common equivalents
  • 1 ft/s² = 12 in/s² (exact)
  • 1 ft/s² = 30.48 Gal (exact)
  • 1 ft/s² ≈ 0.03108 g
Sources

About the Yard Per Second Squared

While the yard per second squared is uncommon in modern engineering, it provides an intuitive scale for everyday accelerations. A brisk walk acceleration is about 1 yd/s², and a car's typical acceleration is about 3-4 yd/s².

In American football physics, a wide receiver coming off the line might accelerate at 5-6 yd/s², while decelerating to make a cut involves forces of similar magnitude in the opposite direction.

About the Foot Per Second Squared

In the early days of rocketry and aviation in the United States, engineers used ft/s² as their primary acceleration unit. The acceleration due to gravity (32.174 ft/s²) became a fundamental constant in these calculations.

Ballistics and firearms engineering still commonly use ft/s² for bullet deceleration calculations, alongside muzzle velocities expressed in feet per second.

Frequently Asked Questions

How many feet per second squared are in one yard per second squared?

One yard per second squared equals 3 feet per second squared. To convert, multiply the yard per second squared value by 3. For the reverse, divide the foot per second squared value by 3 (or multiply by 13).

What is 10 yards per second squared in feet per second squared?

10 yards per second squared = 30 feet per second squared. This is one of the most commonly searched conversions for this pair.

Is the yard per second squared-to-foot per second squared conversion exact?

Yes. The factor 3 is exact by international definition, not an approximation. Any imprecision comes only from the original measurement, not the conversion.

Related in other categories:

  • m/s to km/hSpeed is the integral of acceleration over time
Conversion factors verified against NIST, BIPM Derived from SI base units (m/s², BIPM). Last reviewed: March 2026
Tiago Fernandes Reviewed by Tiago Fernandes

All unit conversions on CoolConversion use conversion factors defined or documented by internationally recognised standards bodies (such as ISO and NIST), including both SI and non-SI units.