Torque Converter
Convert torque between Nm, ft-lb, in-lb, kgf-m and oz-in in seconds with this free and instantly offline with no signup required ever converter for USA workers comp attorney cases, auto insurance claims, and dealer service audits where exact specs prevent snapped bolts and warranty comebacks daily across Austin garages and Chicago fleets nationwide.
Convert torque units instantly. Free newton-meter, foot-pound, inch-pound and kg-m torque converter for auto and engineering.
Calculator Inputs
About Torque Units
Convert torque between Nm, ft-lb, in-lb, kgf-m and oz-in in seconds with this free and instantly offline with no signup required ever converter for USA workers comp attorney cases, auto insurance claims, and dealer service audits where exact specs prevent snapped bolts and warranty comebacks daily across Austin garages and Chicago fleets nationwide.
What this converter does in seconds: Enter any value and switch between Newton-meters, kilonewton-meters, foot-pounds, inch-pounds, kilogram-force meters and ounce-inches with math anchored to Nm on 09/22/2026. The engine multiplies by the unit factor — 1 ft-lb = 1.35582 Nm, 1 in-lb = 0.112985 Nm, 1 kgf-m = 9.80665 Nm, 1 oz-in = 0.00706155 Nm — then divides to your target and rounds to four decimals. The formula line shows 100 ft-lb = 135.582 Nm alongside the converted value so you can copy specs without second-guessing. All calculations stay in your browser for $0 add-ons.
Why exact torque protects USA shops and wallets: Under-torquing a $45,000 truck axle risks wheel-off liability that triggers auto insurance claims and workers comp attorney reviews in Chicago, while over-torquing a $3,200 carbon seatpost in Denver cracks the frame and voids warranty. Lenders reviewing a $28,000 auto loan for a rebuilt fleet want torque logs in Nm matching factory manuals, and mechanic certification programs test conversions to four decimals. A 10 percent error on a $950 axle nut turns a $75 labor job into a $2,400 comeback that business insurance may deny.
Garage and field examples with real dollars: Austin techs doing $85 oil changes convert 25 Nm drain plugs to 18.44 ft-lb for USA torque wrenches. Miami shops rigging $1,400 outboard motors set flywheels to 40 ft-lb then log 54.23 Nm for Yamaha specs. Chicago fleets servicing $950 hub assemblies torque 450 Nm axles and record 331.95 ft-lb for DOT inspectors. Denver bike shops guarding $3,200 carbon builds tighten 5 Nm stems to 44.25 in-lb to prevent crush, while Seattle aerospace teams proving $15,000 turbine bolts convert 12 kgf-m to 117.68 Nm for FAA paperwork. New York students on 09/22/2026 translate 80 ft-lb lug specs to 108.46 Nm for ASE practice without a $199 manual.
Tips for clean spec-perfect results: Verify whether your manual lists dry or lubricated torque — lube can cut required torque 20 percent. Keep ft-lb vs in-lb straight: multiply ft-lb by 12 for in-lb, and check oz-in only for tiny electronics near 5-10 oz-in. Use the formula display to double-check before pulling the wrench, and log both units plus date MM/DD/YYYY on work orders so auto repair shop insurance auditors and auto loan inspectors see consistent USD paperwork like $85, $950 and $15,000.
Privacy offline use and workflow fit: Everything runs locally, free and instantly offline with no signup required ever, so bay readings never upload — crucial when a $45,000 fleet audit or mechanic certification exam is active. No tracking, unlimited recalculations between bays. Pair with the force converter for clamp load and pressure converter for brake boost checks, then paste Nm and ft-lb values into invoices or study sheets. Keep amounts like $85, $950 and $1,400 in USD with four-decimal torque for USA compliance on 09/22/2026.
Where it is used
Austin shops torque $85 oil drain plugs from 25 Nm to 18.4 ft-lb, Chicago fleet techs verify $950 axle nuts at 450 Nm for DOT logs, Miami marinas set $1,400 outboard flywheels at 40 ft-lb, Denver bike mechanics tighten $3,200 carbon stems to 5 Nm to avoid cracks, Seattle aerospace crews certify $15,000 turbine bolts from kgf-m to Nm, and New York students convert $0 homework to pass ASE exams.
How to use the Torque Units
- Value — enter the value (e.g. 100).
- From — enter the value.
- To — enter the value.
- Calculate — press the Calculate button to see the result instantly above.
Formula
All units anchored to newton-meters (1 ft-lb ≈ 1.35582 N·m).
Examples
Oil drain 25 Nm to ft-lb
Axle 450 Nm to ft-lb
40 ft-lb to Nm
Frequently Asked Questions
- Ft-lb vs in-lb?
- 1 ft-lb = 12 in-lb. Use ft-lb for lug nuts and axles, in-lb for small fasteners and bike parts. The converter handles both to four decimals.
- What factor for kgf-m?
- 1 kgf-m = 9.80665 Nm exact. Useful for older Japanese manuals that still list kgf-m.
- Can I use it offline in the bay?
- Yes. All math runs locally in your browser, free and instantly offline with no signup required ever, so no Wi-Fi needed.
- Why four decimals?
- Four decimals satisfies torque wrench tolerance and paperwork for auto repair shop insurance without cluttering invoices.
- Does it handle oz-in?
- Yes. 1 oz-in = 0.00706155 Nm, ideal for electronics and RC motors under 100 oz-in.
- How to log for warranty?
- Copy both Nm and ft-lb with date 09/22/2026 and USD job total like $85 or $950 so mechanic certification and warranty reviewers see exact specs.