Built for Precision.
Trusted by Professionals.
We build free, high-accuracy torque conversion tools for mechanics, engineers, and DIYers worldwide — powered by NIST-verified constants and a zero-friction philosophy.
One tool. One job.
Done right.
When you're in the workshop, on a deadline, or signing off on an engineering document, the last thing you need is a calculator that rounds carelessly or buries the formula. We built Nm to Foot Pounds Converter because torque conversion is safety-critical — and the tools available weren't treating it that way.
Our tool uses the exact SI-defined constants published by NIST, surfaced transparently alongside every result. No rounding at the constant level. No hidden approximations. Just math you can verify and trust.
Derived from exact SI definitions — 1 foot = 0.3048 m exactly, 1 pound-force = 0.45359237 kg × 9.80665 m/s². These are the values used in NIST SP 811 and professional engineering software.
Source: NIST Special Publication 811 — Guide for the Use of the International System of Units (SI).
What Makes It Different
Every detail is engineered for the people who need torque conversions done right, not just done fast.
Live As-You-Type
Results update the moment you type — no submit button, no delay. Both fields sync bidirectionally so you can work in either direction.
Full 16-Figure Precision
Internally uses the complete 16-significant-figure NIST constant. No rounding at the constant level — only where you choose via the Decimals control.
True Bidirectional
Type Nm → get ft-lb. Type ft-lb → get Nm. No mode switch, no direction toggle. The converter works simultaneously in both directions.
Adjustable Decimals
0 to 12 decimal places, on demand. Match exactly what your service manual or engineering document requires.
One-Click Copy
Copy either result to clipboard instantly — ready to paste into spreadsheets, work orders, or engineering documents without reformatting.
27-Value Reference Chart
A built-in reference chart covers common torque values across 4 categories — from precision electronics to heavy drivetrain components.
How We Build
These aren't marketing words — they're the decisions that shaped every feature.
Accuracy First
Math should be verifiable and repeatable. We publish the exact constants we use and show the formula applied to every result — so you can check our work, not just trust it.
Privacy by Default
No account, no tracking pixels, no third-party ad scripts. Calculations happen entirely in your browser. We collect only what's needed to keep the site running.
Free Forever
Torque conversion is a basic engineering need. It will always be free, no paywall, no premium tier, no account required — on any device, any browser, anywhere.
Accessible & Inclusive
Keyboard-navigable inputs, ARIA labels, readable contrast ratios, and a mobile-first layout. The tool works for everyone — in the office, the workshop, or the garage.
Built Across Industries
From the workshop floor to the engineering lab — wherever precise torque conversion matters, this tool was designed for you.
Mechanics & Technicians
Convert service-manual torque specs between Nm and ft-lb at the workbench — whether your torque wrench or manual uses metric or imperial.
Mechanical Engineers
Validate fastener specs across unit systems during design reviews, FEA reports, and cross-regional handover documentation.
Quality & Assembly
Ensure correct torque spec conversion across metric and imperial tooling for ISO certification, audits, and cross-plant standardization.
DIY Enthusiasts
Work on your car, motorcycle, or home machinery with the correct torque spec regardless of which unit system your tools or manual use.
Our Safety Commitment
This tool is built for accuracy — but accuracy is not a substitute for the manufacturer's official service data. Safety-critical fasteners (cylinder head bolts, wheel lug nuts, brake caliper bolts) require torque within tight tolerances that only your OEM service manual can confirm. Always verify converted values against your manufacturer's specifications before applying torque to any safety-critical component. We surface this reminder prominently because precision tools carry responsibility.
Roadmap
We're actively improving the tool. Here's what's coming.
More Torque Units
In-lb, kg·m, and kgf·cm conversions — with the same live, bidirectional UX and NIST-level precision.
Printable & Exportable Charts
Download torque reference tables as PDF or CSV — ready for workshop binders, inspection records, and QA documentation.
Dark Mode
Full dark theme with accessible contrast ratios — ideal for low-light workshop environments and night-shift engineers.
Offline PWA Support
Install the converter as a progressive web app for offline use — no internet connection required once installed.
Have Feedback or a Feature Idea?
We read every message. Bug reports, feature requests, or just a kind word — reach out and we'll respond.
Last updated: April 29, 2026