Ft-Lbs to Nm Converter (Embed)

Lug nut & wheel (tap to fill, ft-lb)

Common service torques (spark plug, oil drain, calipers)

ft·lb

US torque-wrench reading

N·m

European service-data spec

in·lb

Sensors / spark plugs / sub-25 ft-lb

Edit any field — the other two recompute live. NIST factor: 1 ft·lb = 1.3558179 N·m

Wrench class & range

Lug nut / suspension

Wrench: 1/2" drive (30–250 ft-lb)

100 ft·lb is 135.58 N·m (1,200 in-lb) — within the lug nut / suspension range. Most US passenger-car lug nuts spec 80–120 ft·lb.

Quick reference — common automotive torques

Spark plug

15 ft-lb / 20 N·m

Oil drain

25 ft-lb / 34 N·m

Lug nut (sedan)

100 ft-lb / 136 N·m

Lug nut (SUV)

120 ft-lb / 163 N·m

Conversion uses NIST exact values (1 ft·lb = 1.3558179483 N·m). Common-fastener torque ranges shown are typical industry values — not OEM-specific. Always verify against your owner's manual or OEM service data. Mike Reeves is an ASE Master Technician, not your shop manager.

Ft-Lbs to Nm Torque Converter