Watt to Pound-inch
Compare Watt and Pound-inch. See why these engineering units measure different physical quantities, plus links to valid conversions.
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Engineering Converter
Convert common stress, force, torque, power, and energy units used in engineering.
Context values
Some unit families need one extra value for a physically accurate result.
Use the converter to see the formula.
Watt and Pound-inch measure different quantities, so no single result applies.
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Formula
Watt (W) measures power, while Pound-inch (lb in) measures torque (rotational force). These are different physical quantities, so there is no single multiplication factor that converts one into the other.
W relates to its own power base unit by a factor of 1. lb in relates to its own torque (rotational force) base unit by a factor of 0.112985.
Conversion table
| Watt (W) | 1 × power base unit |
| Pound-inch (lb in) | 0.112985 × torque (rotational force) base unit |
Related conversions
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Frequently asked questions
Can Watt be converted to Pound-inch?
Not directly. Watt measures power and Pound-inch measures torque (rotational force). Converting between different physical quantities needs an extra physical relationship (such as area, distance, or time), not just a unit ratio.
What is Watt used for?
The Watt (W) is a unit of power. The watt is one joule per second.
What is Pound-inch used for?
The Pound-inch (lb in) is a unit of torque (rotational force). Torque from one pound-force at one inch.
Why does the converter show an incompatible units message?
The Universal Converter only calculates a numeric result when both units share the same physical dimension. Since Watt and Pound-inch don't, the tool flags them as not directly compatible rather than returning a meaningless number.
What should I convert Watt to instead?
Use another power unit, such as one of the related Watt conversions linked below.
What should I convert Pound-inch to instead?
Use another torque (rotational force) unit, such as one of the related Pound-inch conversions linked below.
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About this conversion
This page compares Watt (W) and Pound-inch (lb in) within the engineering converter.
The watt is one joule per second. Torque from one pound-force at one inch.
Because Watt measures power and Pound-inch measures torque (rotational force), the two units are not directly convertible: there is no fixed ratio that turns one into the other without additional information.
The calculator above will report that these units are not compatible. For a working result, choose two units from the same measurement family — see the related conversions below.