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Torque Converter - Free Online Tool

Last updated March 22, 2026

Torque Converter Examples

The Torque Converter converts torque values between Newton-meters, foot-pounds, inch-pounds, kilogram-force meters, and other units. Below are practical examples for automotive, engineering, and fastener applications.

Conversion Factors

// Base unit: Newton-meter (N·m)
1 N·m = 0.7376 ft·lb    (foot-pounds)
1 N·m = 8.8507 in·lb    (inch-pounds)
1 N·m = 0.1020 kgf·m    (kilogram-force meters)
1 N·m = 10,000,000 dyn·cm (dyne-centimeters)

// Inverse:
1 ft·lb  = 1.3558 N·m
1 in·lb  = 0.1130 N·m
1 kgf·m  = 9.8067 N·m

Newton-meters to Foot-pounds

// Formula: ft·lb = N·m × 0.7376

10 N·m   = 7.38 ft·lb
20 N·m   = 14.75 ft·lb
25 N·m   = 18.44 ft·lb
30 N·m   = 22.13 ft·lb
50 N·m   = 36.88 ft·lb
100 N·m  = 73.76 ft·lb
120 N·m  = 88.51 ft·lb
150 N·m  = 110.6 ft·lb
200 N·m  = 147.5 ft·lb
250 N·m  = 184.4 ft·lb
300 N·m  = 221.3 ft·lb

Foot-pounds to Newton-meters

// Formula: N·m = ft·lb × 1.3558

10 ft·lb  = 13.56 N·m
15 ft·lb  = 20.34 N·m
20 ft·lb  = 27.12 N·m
25 ft·lb  = 33.90 N·m
50 ft·lb  = 67.79 N·m
75 ft·lb  = 101.7 N·m
100 ft·lb = 135.6 N·m
150 ft·lb = 203.4 N·m
200 ft·lb = 271.2 N·m

Inch-pounds Conversions

// Formula: in·lb = N·m × 8.8507
// Formula: N·m = in·lb × 0.1130

// Small fastener torque values:
5 in·lb   = 0.565 N·m
10 in·lb  = 1.13 N·m
15 in·lb  = 1.69 N·m
20 in·lb  = 2.26 N·m
25 in·lb  = 2.82 N·m
50 in·lb  = 5.65 N·m
100 in·lb = 11.30 N·m

// Relationship: 1 ft·lb = 12 in·lb

Common Automotive Torque Specifications

// Passenger car specifications:
Lug nuts (typical):        100-120 N·m  = 74-89 ft·lb
Spark plugs:               20-30 N·m    = 15-22 ft·lb
Oil drain plug:            25-35 N·m    = 18-26 ft·lb
Wheel bearing nut:         150-250 N·m  = 111-184 ft·lb
Brake caliper bolts:       25-35 N·m    = 18-26 ft·lb
Cylinder head bolts:       80-100 N·m   = 59-74 ft·lb
Crankshaft pulley bolt:    150-200 N·m  = 111-148 ft·lb

// Motorcycle specifications:
Axle nut (front):          50-80 N·m    = 37-59 ft·lb
Axle nut (rear):           80-120 N·m   = 59-89 ft·lb
Handlebar clamp:           20-25 N·m    = 15-18 ft·lb

Bicycle Torque Specifications

// Bicycle component torque values:
Stem bolts:                5-7 N·m      = 44-62 in·lb
Handlebar clamp:           5-7 N·m      = 44-62 in·lb
Seatpost clamp:            5-8 N·m      = 44-71 in·lb
Brake lever clamp:         6-8 N·m      = 53-71 in·lb
Derailleur cable bolt:     5-7 N·m      = 44-62 in·lb
Pedal (left, reverse):     35 N·m       = 26 ft·lb
Pedal (right):             35 N·m       = 26 ft·lb
Bottom bracket:            35-50 N·m    = 26-37 ft·lb
Cassette lockring:         40 N·m       = 30 ft·lb

Engine Torque Output Examples

// Engine torque specifications (peak torque):
Small economy car:         150-200 N·m  = 111-148 ft·lb
Mid-size sedan:            250-350 N·m  = 184-258 ft·lb
Sports car:                400-600 N·m  = 295-443 ft·lb
Pickup truck (V8):         500-700 N·m  = 369-516 ft·lb
Heavy truck diesel:        1,500-3,000 N·m = 1,107-2,213 ft·lb

Torque and Power Relationship

// Power = Torque × Angular velocity
// P (watts) = T (N·m) × ω (rad/s)
// P (hp) = T (ft·lb) × RPM / 5,252

// Examples:
// Engine producing 300 N·m at 4,000 RPM:
ω = 4,000 RPM × (2π / 60) = 418.9 rad/s
P = 300 N·m × 418.9 rad/s = 125,664 W = 125.7 kW = 168.5 hp

// Engine producing 200 ft·lb at 5,000 RPM:
P = 200 × 5,000 / 5,252 = 190.4 hp = 142.0 kW

Kilogram-force Meter Conversions

// kgf·m is used in some European/Asian specifications
// Formula: N·m = kgf·m × 9.8067

1 kgf·m   = 9.807 N·m   = 7.233 ft·lb
5 kgf·m   = 49.03 N·m   = 36.17 ft·lb
10 kgf·m  = 98.07 N·m   = 72.33 ft·lb
15 kgf·m  = 147.1 N·m   = 108.5 ft·lb
20 kgf·m  = 196.1 N·m   = 144.7 ft·lb

All Units Comparison Table

N·m    | ft·lb  | in·lb  | kgf·m
-------|--------|--------|-------
1      | 0.738  | 8.851  | 0.102
5      | 3.688  | 44.25  | 0.510
10     | 7.376  | 88.51  | 1.020
25     | 18.44  | 221.3  | 2.549
50     | 36.88  | 442.5  | 5.099
100    | 73.76  | 885.1  | 10.20
200    | 147.5  | 1,770  | 20.39

Common Use Cases

Convert lug nut torque specs between N·m and ft·lb
Verify fastener torque for automotive repair
Convert engine torque specs from European (N·m) to US (ft·lb)
Calculate bicycle component torque in correct units
Convert torque wrench settings between unit systems
Engineering calculations for motor and drivetrain design
Convert torque specs from older kgf·m documentation

Enter your torque value in any unit and instantly see the equivalent in all other units.

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