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Ounce square inch (oz·in²)

One avoirdupois ounce at one inch. Common in small motor data sheets.

What is an ounce square inch?

Symbol
oz·in²
Quantity
Moment of Inertia
Unit system
US customary
Definition
One avoirdupois ounce at one inch. Common in small motor data sheets.
Exact
Yes, the value is exact by definition
Source
NIST Special Publication 811 (2008), Appendix B.8

Common applications

Used in US data sheets for small motors, encoders and stepper motors.

Ounce square inch in other moment of inertia units

Ounce square inch quick reference

Ounce square inch in other units
Ounce square inchKilogram square centimeterKilogram square meterPound square foot
1 oz·in²= 0.18289978339325 kg·cm²= 0.000018289978339325 kg·m²≈ 0.0004340277778 lb·ft²
10 oz·in²= 1.8289978339325 kg·cm²= 0.00018289978339325 kg·m²≈ 0.004340277778 lb·ft²
100 oz·in²= 18.289978339325 kg·cm²= 0.0018289978339325 kg·m²≈ 0.04340277778 lb·ft²
1000 oz·in²= 182.89978339325 kg·cm²= 0.018289978339325 kg·m²≈ 0.4340277778 lb·ft²

Where the ounce square inch fits

The next smaller moment of inertia unit is the gram square centimeter (g·cm²). 1 oz·in² = 182.89978339325 g·cm², and 1 g·cm² ≈ 0.005467475037 oz·in².

The next larger moment of inertia unit is the kilogram square centimeter (kg·cm²). 1 oz·in² = 0.18289978339325 kg·cm², and 1 kg·cm² ≈ 5.467475037 oz·in².

Frequently asked questions

How many kilogram square centimeters are in one ounce square inch?
One ounce square inch = 0.18289978339325 kg·cm² (kilogram square centimeters).
How many kilogram square meters are in one ounce square inch?
One ounce square inch = 0.000018289978339325 kg·m² (kilogram square meters).
How many pound square feet are in one ounce square inch?
One ounce square inch ≈ 0.0004340277778 lb·ft² (pound square feet).