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Velocity - Angular Converter

Convert velocity - angular values quickly and accurately. Instant conversions with detailed step-by-step solutions.

Last Updated: May 26, 2026
6 min read

About this converter

Convert between 12 different units of velocity - angular. Enter a value and select units to see the conversion result instantly with step-by-step solution.

This Velocity - Angular Converter helps you convert angular velocity from one unit to another in seconds. Angular velocity tells you how fast something rotates, like a motor shaft, a wheel, a gear, or a spinning fan. This tool is useful for students, engineers, mechanics, robotics builders, and anyone working with rotation and motion. You enter a value, choose the unit you have, then select the unit you want. The calculator gives you the converted result instantly, so you can compare specs, check formulas, and avoid unit mix-ups in real projects.

How to Use This Calculator

  1. Enter your angular velocity value (for example, 12.5).
  2. Choose the starting unit (such as rad/s, rpm, or deg/s).
  3. Choose the unit you want to convert to.
  4. Review the converted value shown in the result.
  5. If available on your page, use rounding or decimal settings to match your needs.
  6. Change inputs anytime to test different speeds or units.

What This Calculator Measures

Angular velocity is the speed of rotation. It describes how quickly an object turns around a center point or axis.

Key terms in simple language:

  • Angular velocity: How fast something is spinning.
  • Rotation: One full turn around a circle.
  • Radians (rad): A way to measure angles used in math and physics.
  • Degrees (deg): A common angle unit where a full circle is 360°.
  • Revolutions per minute (rpm): How many full turns happen each minute.
  • Revolutions per second (rps): How many full turns happen each second.

Formula or Logic

This converter works by translating every unit into a shared "base" idea: how much rotation happens over time.

Here's the plain logic:

  • If you know how many full turns happen each second or minute (rps or rpm), you can convert that into angle-based units (degrees or radians) because one full turn equals a full circle.
  • A full circle equals 360 degrees.
  • A full circle also equals 2π radians.
  • Once the tool converts your input into the base form, it converts again into the unit you selected.

No heavy math is needed from you. You only choose units and read the result.

Example Calculations

Example 1: Convert rpm to rad/s

  • Input: 120 rpm
  • Output: 12.5664 rad/s Explanation: 120 rpm is 2 rotations per second, and each rotation is 2π radians.

Example 2: Convert rad/s to rpm

  • Input: 10 rad/s
  • Output: 95.493 rpm Explanation: The tool converts radians per second into rotations per second, then into rotations per minute.

Example 3: Convert deg/s to rpm

  • Input: 360 deg/s
  • Output: 60 rpm Explanation: 360 degrees per second is 1 full rotation per second, which equals 60 rotations per minute.

Understanding Your Results

Your output is the same rotational speed shown in a different unit.

How to read the result:

  • If the result is in rpm, it tells you how many full turns happen each minute.
  • If the result is in rad/s, it tells you how fast the rotation is in radians per second, which is common in physics and engineering equations.
  • If the result is in deg/s, it tells you how many degrees are covered each second, which can feel more intuitive for angles.

A quick tip: Use rpm for motors and machine specs. Use rad/s for formulas, simulations, and calculations involving torque, acceleration, or energy.

Common Mistakes to Avoid

  • Mixing up rpm (per minute) with rps (per second).
  • Typing degrees when your value is actually in radians (or the other way around).
  • Forgetting that negative values can be valid (they usually mean reverse direction).
  • Confusing linear velocity (m/s) with angular velocity (rad/s, rpm).
  • Rounding too early and losing accuracy in multi-step calculations.
  • Using a motor's "rated rpm" while ignoring gear ratio changes.
  • Entering commas or extra symbols that the input field may not accept.

Frequently Asked Questions

Angular velocity is how fast something spins. It measures rotation speed around an axis, not straight-line speed.
Angular velocity describes rotation (like spinning). Linear velocity describes straight movement (like sliding) and is usually measured in m/s or ft/s.
Use rad/s when you are working with physics or engineering formulas, simulations, and calculations involving angular acceleration, torque, or energy.
No. They describe the same type of motion, but they use different units. The converter changes one into the other without changing the actual speed.
Select rpm as the input unit and rad/s as the output unit, then enter your value. The calculator will show the converted result immediately.
Yes. A negative value usually means the rotation is in the opposite direction, depending on how you define the positive direction.
Deg/s means degrees per second. It tells you how many degrees of rotation happen every second.
Rps means revolutions per second. It's useful in scientific work and fast-rotation systems because it ties directly to "per second" timing.
Some conversions involve π (pi), which creates decimal values. You can round the result for display, but keep more decimals if precision matters.
It converts the units for any rotational speed value. If your setup includes gears, make sure your input speed already reflects the gear ratio you want.
In many basic contexts, people use them interchangeably. Strictly speaking, angular speed is the magnitude only, while angular velocity includes direction.
Degrees and radians are angle units. Angular velocity includes time (like per second). This converter keeps the "per time" part consistent while changing the angle unit.

This converter helps you switch angular velocity values between common units like rad/s, rpm, deg/s, rps, and more without confusion. Enter your value, select the units, and read the converted result instantly. Try the calculator above to see your results.