Torque Calculator
Torque, force, arm length and angular conversions
Quick Answer — Torque
The Torque Calculator is a free online engineering tool that helps you torque, force, arm length and angular conversions. Enter your values above for instant, accurate results — no signup required. All calculations run privately in your browser.
Maintained by: Sagar Sahni, Calc Labz | Review: formula checks, worked examples, and periodic updates
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Step-by-Step Formula Derivation
Mathematical derivation for the Torque Calculator
Applicable Standards & Codes
Engineering standards referenced by the Torque Calculator
Engineering Reference
Learn the theory behind the Torque Calculator
Torque (τ) is the rotational equivalent of linear force, causing angular acceleration in rotating systems. Mathematically, τ = F × r × sin(θ), where F is the applied force, r is the moment arm (perpendicular distance from the axis of rotation), and θ is the angle between the force vector and the moment arm. Maximum torque occurs when force is applied perpendicular to the moment arm (θ = 90°).
In mechanical power transmission, torque and angular velocity are related by P = τ × ω = τ × (2πN/60), where N is RPM. This relationship is fundamental to motor selection, gearbox design, and drivetrain engineering. Torque is measured in N·m (SI), kgf·cm, or lbf·ft (imperial).
Formula & Worked Example
The math behind the Torque Calculator
Mathematical Formula
Result = F(x_1, x_2, \dots, x_n)Step-by-Step Worked Example
Frequently Asked Questions
Common questions about the Torque Calculator
What is the Torque Calculator?
How do I use the Torque Calculator?
Is my personal data saved when using this calculator?
Can I use the Torque Calculator on my mobile phone?
How accurate is the Torque Calculator?
What is the Torque Calculator?
The Torque Calculator is a free online engineering tool that helps you torque, force, arm length and angular conversions. Built for accuracy and speed, this calculator uses verified formulas and provides instant results without requiring any signup or registration. All calculations run entirely in your browser, ensuring complete privacy — no personal data is ever sent to our servers.
How to Use the Torque Calculator
- Enter Force: Enter your force (in N) in the input field. The calculator will validate your input automatically.
- Enter Moment Arm Length: Enter your moment arm length (in m) in the input field. The calculator will validate your input automatically.
- Enter Angle between F and arm: Enter your angle between f and arm (in °) in the input field. The calculator will validate your input automatically.
- View Your Results: The Torque Calculator displays your results instantly in the output panel. You will see the primary result along with a detailed breakdown of secondary outputs. Scroll down for charts, interpretations, and expert advice.
Key Features
- Instant Torque calculations with real-time updates
- No signup, no registration — 100% free forever
- All calculations happen in your browser — zero data sent to servers
- Works offline as a Progressive Web App (PWA)
- Mobile-friendly responsive design
- Verified engineering formulas updated for 2026
Why Use Calc Labz Torque Calculator?
The Calc Labz Torque Calculator stands out because it combines accuracy with simplicity. Unlike other online calculators, we provide detailed breakdowns, step-by-step formulas, and actionable advice alongside your results. Our engineering calculators are regularly updated to reflect current rates, rules, and standards for India (2026). Whether you are a student, professional, or just need a quick calculation — Calc Labz delivers reliable results instantly.
Key Terms & Glossary
- Ohm's Law
- V = I × R — Voltage equals Current times Resistance. The fundamental law of electrical circuits.
- Power Factor
- The ratio of real power to apparent power in an AC circuit, ranging from 0 to 1.
- Torque
- A rotational force measured in Newton-meters (N·m) that causes an object to rotate about an axis.
- Reynolds Number
- A dimensionless quantity predicting whether fluid flow is laminar (smooth) or turbulent.