Free Online Calculators
N·m, kgf·m, lbf·ft and more
This converter instantly transforms torque values between all common units — N·m, kgf·m, lbf·ft, lbf·in, and more. Torque is calculated as the product of force and lever arm length (τ = F × r). Just enter any value and every other unit updates automatically.
1 Newton·meter equals 100 Newton·centimeter. The full conversion table for all 7 units is right below the calculator.
| Unit | Nm | Ncm | kNm | kgfm | kgfcm | lbfft | lbfin |
|---|---|---|---|---|---|---|---|
| 1 Newton·meter | 1 | 100 | 0.001 | 0.101972 | 10.197162 | 0.737561 | 8.850732 |
| 1 Newton·centimeter | 0.01 | 1 | 1.0000e-5 | 0.00102 | 0.101972 | 0.007376 | 0.088507 |
| 1 Kilonewton·meter | 1000 | 100000 | 1 | 101.971621 | 10197.16213 | 737.561033 | 8850.732398 |
| 1 kgf·meter | 9.80665 | 980.665 | 0.009807 | 1 | 100 | 7.233003 | 86.796035 |
| 1 kgf·centimeter | 0.098067 | 9.80665 | 9.8067e-5 | 0.01 | 1 | 0.07233 | 0.86796 |
| 1 lbf·foot | 1.35582 | 135.582 | 0.001356 | 0.138255 | 13.825516 | 1 | 12 |
| 1 lbf·inch | 0.112985 | 11.2985 | 0.000113 | 0.011521 | 1.152126 | 0.083333 | 1 |
Rounded to six significant digits.
A failing torque converter usually shows up as shuddering at light throttle, slipping or delayed engagement, overheating transmission fluid and stalling when you come to a stop. In severe cases debris from the converter circulates through the transmission and damages the valve body and clutches.
The cost is driven mostly by labour, because the transmission has to be separated from the engine to reach the converter, so a rear-wheel-drive truck is typically cheaper than a transverse front-wheel-drive layout. Shops often recommend replacing the fluid, filter and front pump seal at the same time, which adds to the bill.
It is worth it when the rest of the transmission is still healthy and the fluid shows no heavy clutch material or metal. If the fluid is burnt and full of debris, a full rebuild or a replacement transmission is usually the better investment.
A torque converter is a fluid coupling that transfers engine power to the automatic transmission while allowing the engine to keep running when the vehicle is stopped. It also multiplies torque at low speeds, and its lock-up clutch creates a direct mechanical connection at cruising speed to avoid slip losses.
The engine will start and run, but the car will not move, because there is no connection between the crankshaft and the transmission input shaft. On most automatics the converter also drives the front pump, so without it the transmission has no fluid pressure or lubrication.
No, on a conventional automatic the transmission has to be unbolted and pulled back from the engine, since the converter sits in the bellhousing between the two. The only exception is a vehicle where the whole transaxle or engine assembly comes out as a unit, which does not make the job any shorter.
There is no safe mileage figure — a converter can shudder for months or shed its clutch lining within days. Driving on it circulates debris and overheated fluid through the whole transmission, so the longer you wait the more likely you turn a converter job into a rebuild.
Low or degraded transmission fluid, a sticking lock-up solenoid, a faulty valve body, worn engine mounts and misfires from bad spark plugs or coils all produce very similar shudder and slipping symptoms. Checking fluid condition and scanning for codes usually separates them before anything comes apart.
Torque is a fundamental concept in engineering, mechanics, and physics. Whether you're tightening bolts to a specific specification, comparing engine outputs across different car brands, or working on a precision mechanical project, understanding and converting torque units is essential. Our free Torque Converter lets you instantly switch between N·m, kgf·m, lbf·ft, and many more units with pinpoint accuracy.
Torque, sometimes called a moment of force or rotational force, measures how much a force causes an object to rotate about an axis. The basic formula is τ = F × r, where τ is torque, F is the applied force, and r is the perpendicular distance (lever arm) from the axis of rotation to the point where the force is applied.
In everyday life, torque appears when you turn a wrench, open a door, or ride a bicycle. In professional settings, it governs everything from engine performance in vehicles to the tightening specs for aerospace fasteners. Because engineers and technicians around the world use different unit systems, a reliable torque converter is an indispensable tool.
Our torque converter handles all major internationally recognized units, including:
Using our tool requires no technical knowledge. Simply follow these steps:
You can also view conversions across multiple units simultaneously, which is extremely helpful when preparing documentation for global audiences or cross-referencing international standards.
A mechanic working on a European car needs to torque the cylinder head bolts to 110 N·m, but their torque wrench is calibrated in lbf·ft. Using our converter: 110 N·m ≈ 81.1 lbf·ft. This quick conversion prevents costly mistakes and ensures the job is done safely and correctly.
Car enthusiasts and engineers often compare vehicles across markets. A sports car producing 450 N·m of torque is delivering approximately 332 lbf·ft. Our converter makes these comparisons effortless, helping buyers and engineers make informed decisions.
In manufacturing, bolt torque specifications are critical for structural integrity. Many international standards publish torque values in N·m, while older US-manufactured equipment may use lbf·in or lbf·ft. Bridging these systems accurately is vital for safety. Our calculator does exactly that.
Carbon fiber bicycle components have precise torque limits to avoid damage. Manufacturers often specify values in N·m while mechanics trained in the US may use tools calibrated in lbf·in. A quick conversion with our tool prevents over-tightening and component failure.
For those who want to understand the math behind torque conversions, here are the most important factors:
All these factors are precisely programmed into our converter, ensuring that you always get accurate, reliable results, whether you're working on a hobby project or a critical engineering application.
Manual conversions are prone to error, especially when working under pressure or in the field. A single miscalculation can lead to under-tightened joints that fail under load, or over-tightened fasteners that crack or strip. Our free online torque converter eliminates this risk by providing instant, accurate conversions every time.
Newton-meter (N·m) is the metric SI unit of torque, while pound-force foot (lbf·ft) is the imperial equivalent. 1 lbf·ft equals approximately 1.35582 N·m. The two systems are used in different regions, with N·m dominant in Europe and lbf·ft common in the United States.
In automotive engineering, torque determines a vehicle's ability to accelerate and perform work, especially at low speeds. Engine torque figures help buyers compare vehicles fairly, while torque specifications for fasteners ensure safe and reliable assembly of engine and chassis components.
Yes, our torque converter is completely free, requires no sign-up, and works on all devices including smartphones, tablets, and desktops. It is available 24/7 with no usage limits.
Our converter uses internationally standardized conversion factors and returns results to multiple decimal places. This level of precision is suitable for professional engineering, manufacturing, and quality control applications.
Absolutely. Our tool handles the full range from micro-torques (e.g., mN·m for precision instruments) to large industrial values (e.g., kN·m for heavy machinery), making it versatile for any application.