What Is This Tool?
This online converter helps you change torque values from pound-force foot (lbf*ft), used mainly in U.S. customary engineering, into newton meter (N*m), the SI unit for torque, ensuring accurate and internationally recognized measurements.
How to Use This Tool?
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Enter the torque value in pound-force foot (lbf*ft).
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Select pound-force foot as the input unit and newton meter as the output unit.
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Click convert to get the equivalent torque in newton meter (N*m).
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Use the result for engineering design, maintenance, or documentation.
Key Features
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Converts torque between pound-force foot and newton meter units instantly.
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Supports quick and easy calculations for engineering applications.
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Browser-based tool requiring no installation or setup.
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Useful for mechanical, automotive, and industrial torque conversions.
Examples
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Convert 5 lbf*ft: 5 × 1.35582 = 6.7791 N*m.
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Convert 10 lbf*ft: 10 × 1.35582 = 13.5582 N*m.
Common Use Cases
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Setting torque wrench values for bolts and fasteners in automotive maintenance.
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Measuring torque output for small engines and electric motors.
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Designing gearboxes, lever arms, and mechanical linkages in engineering.
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Translating U.S. customary torque specs to SI units for international standards.
Tips & Best Practices
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Ensure correct input unit selection before conversion.
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Use the tool to verify torque values during mechanical design and calibration.
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Be mindful of unit system differences in documentation and compliance.
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Consult manufacturer specifications for torque requirements in the proper unit.
Limitations
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Conversion precision depends on rounding and significant digits used.
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Pound-force foot and newton meter belong to different unit systems, requiring careful notation.
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Torque measurements may carry inherent uncertainty beyond unit conversion.
Frequently Asked Questions
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What does 1 pound-force foot represent?
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It represents the torque caused by one pound-force applied at a lever arm of one foot, indicating rotational force in U.S. customary units.
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Is a newton meter the same as a joule?
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Dimensionally they are equal, but a newton meter denotes torque (rotational force), while a joule measures energy.
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Why convert pound-force foot to newton meter?
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To express torque values in SI units for international engineering, manufacturing, and scientific use.
Key Terminology
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Pound-force foot [lbf*ft]
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A unit of torque representing one pound-force applied at a one-foot lever arm; primarily used in U.S. customary engineering.
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Newton meter [N*m]
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The SI derived unit for torque, equal to one newton force applied perpendicularly at one meter from the pivot.
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Torque
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The rotational force or moment of force that causes an object to rotate about an axis.