# Angular Velocity

Browse 3 online Angular Velocity tools in your browser. Processing runs on Elysia Tools servers; text inputs are not stored and uploaded files are deleted after 6 hours.

> Canonical page: https://elysiatools.com/en/tags/angular-velocity

## Overview

Explore 3 browser-based tools for working with angular velocity. No software installation is required, and submitted text is not stored.

## Frequently asked questions

### What are Angular Velocity tools used for?

These tools provide browser-based workflows related to angular velocity. Available operations depend on the individual tool.

### How is my data processed?

You use the tools through your browser, while processing runs on Elysia Tools servers. Text inputs are not stored, and uploaded files are automatically deleted after 6 hours.

### Do I need to install software?

No. Angular Velocity tools are available through the browser UI without requiring software installation.

## Tools

- [DC Motor Back-EMF & Torque Calculator (E=kω, T=kI)](https://elysiatools.com/en/tools/dc-motor-back-emf): Compute the back-EMF and electromagnetic torque of a DC motor from its machine constant: E=k·ω, T=k·I. In SI units the back-EMF constant equals the torque constant (k_e=k_t=k, V·s/rad=N·m/A). Also returns the mechanical (air-gap) power P=T·ω=E·I. Speed accepted in rad/s or RPM.
- [Flywheel Energy Storage Calculator](https://elysiatools.com/en/tools/flywheel-energy-storage): Calculate the kinetic energy stored in a flywheel. E = ½·I·ω², ω = 2π·n/60. Enter the moment of inertia directly, or compute it from flywheel mass and radius (I = ½·m·r²). Supports J/kJ/Wh.
- [Shaft Power Calculator](https://elysiatools.com/en/tools/shaft-power-calculator): Calculate the power transmitted by a rotating shaft. P = T·ω = 2π·n·T/60. Solve power from torque and speed, or torque from power and speed. Supports W/kW/hp.

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