Torque Converter
Convert N·m, lbf·ft, lbf·in and kilogram-force torque units.
YOUR CALCULATION
Result
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Calculation steps
Work through one step at a time or reveal the complete calculation. The steps use your current inputs.
How to calculate
Multiply force and lever-arm unit factors to express torque in newton-meters.
1 lbf·ft=(0.45359237×9.80665)×0.3048 N·m; 1 lbf·ft=12 lbf·in
Worked example
100 lbf·ft is approximately 135.581795 N·m, and 1200 lbf·in.
Assumptions and input details
Signed torque follows a user-chosen direction convention. Pound units here are pound-force, not mass pounds. Torque and energy have related dimensions but represent different quantities. This does not choose a fastener torque, friction coefficient, preload or safe setting.
References: NIST Guide to the SI: conversion factors
Using this calculator
Can I enter my own problem?
Yes. Replace the example values with your own inputs. The result, calculation steps, tables and applicable diagrams update from those inputs. Blank or invalid values clear the result; example values are never silently substituted for missing inputs.
Are the results exact?
Results use floating-point arithmetic and displayed rounding. Read the formula, assumptions and any stated data precision before interpreting the result.
Is my input uploaded?
The calculation runs in your browser. No account, file upload or external AI service is required. Inputs are not saved between page reloads.
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