Torque Converter
Convert between newton-metres, foot-pounds, inch-pounds, and kilogram-metres.
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Torque measures rotational force. Nm is SI; ft-lbs is US automotive. Correct torque is critical for bolt tightening and engine specifications.
Torque in Automotive
Passenger car: 150–300 Nm. Heavy truck: 500–2,500 Nm. Always specified alongside RPM.
Bolt Torque Specs
M10 bolt: 40–50 Nm (30–37 ft-lbs). Over-tightening breaks bolts; under-tightening causes failures.
How to Use This Calculator
- Select 'Torque'
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- Enter the value
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Applications
Automotive Maintenance
Wheel nuts: 100–120 Nm (74–89 ft-lbs). Wrong values cause wheel failure.
Mechanical Engineering
Motor/gearbox specs in Nm or ft-lbs. Convert for international components.
Bicycle Maintenance
Carbon components: 5–8 Nm. Over-tightening damages expensive parts.
Frequently Asked Questions
How do you convert Nm to ft-lbs?
Divide by 1.3558. 100 Nm = 73.76 ft-lbs.
How do you convert ft-lbs to Nm?
Multiply by 1.3558. 80 ft-lbs = 108.46 Nm.
Torque vs power?
Torque = rotational force (Nm). Power = torque × angular velocity. 300 Nm at 4,000 RPM ≈ 125.7 kW.