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Foot-Pounds to Inch-Pounds Converter

Convert foot-pounds to inch-pounds and inch-pounds to foot-pounds instantly. Bidirectional torque converter with formula and common values.

ft-lb

Inch-Pounds

90

in-lb

7.5 ft-lb = 90 in-lb

in-lb = ft-lb × 12

Foot-Pounds to Inch-Pounds: 1 ft-lb equals 12 in-lb. To convert foot-pounds to inch-pounds, multiply by 12 (in-lb = ft-lb × 12). For example, 10 ft-lb = 120 in-lb.

How to Convert Foot-Pounds to Inch-Pounds

To convert from foot-pounds to inch-pounds, multiply the value by 12. The conversion is linear, meaning doubling the input doubles the output.

Conversion Formula

  • Foot-Pounds to Inch-Pounds: in-lb = ft-lb × 12
  • Inch-Pounds to Foot-Pounds: ft-lb = in-lb ÷ 12

Foot-Pounds to Inch-Pounds Conversion Chart

Foot-Pounds (ft-lb)Inch-Pounds (in-lb)
0.11.2
0.253
0.56
112
224
336
560
10120
20240
25300
50600
1001200
2503000
100012000

Understanding the Units

What is a Foot-Pound?

A foot-pound (force) equals approximately 1.355818 newton-meters — the torque from one pound-force at one foot.

Common contexts: automotive (US), fastener torque (US).

What is an Inch-Pound?

An inch-pound (force) equals exactly 1/12 of a foot-pound, or about 0.112985 newton-meters.

Common contexts: precision fasteners (US), small engines.

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FAQ

How many inch-pounds are in a foot-pound?

There are exactly 12 inch-pounds in 1 foot-pound, since 1 foot equals 12 inches.

How do you convert foot-pounds to inch-pounds?

Multiply the foot-pound value by 12. For example, 7.5 ft-lb × 12 = 90 in-lb.

When should I use inch-pounds instead of foot-pounds?

Inch-pounds are preferred for smaller torque values, such as tightening screws on electronics, firearms, bicycle components, and small engine parts where foot-pounds would give inconveniently small decimals.

What is a typical torque range in foot-pounds for automotive work?

Automotive lug nuts typically require 80-100 ft-lb (960-1200 in-lb), while smaller bolts like valve cover bolts may need just 3-5 ft-lb (36-60 in-lb).

How many inch-pounds are in 1 foot-pound?

1 ft-lb equals 12 in-lb.

How many inch-pounds are in 5 foot-pounds?

5 ft-lb = 60 in-lb.

How do you convert inch-pounds back to foot-pounds?

Use the inverse formula: ft-lb = in-lb ÷ 12. For example, 1 in-lb = 0.083333 ft-lb.

What is the difference between Foot-Pound and Inch-Pound?

A foot-pound (force) equals approximately 1.355818 newton-meters — the torque from one pound-force at one foot. An inch-pound (force) equals exactly 1/12 of a foot-pound, or about 0.112985 newton-meters.