Question 1

What is a gradian?

Accepted Answer

A gradian (gon) divides a right angle into 100 parts, making a full circle 400 gradians. Used in surveying.

Question 2

How do I convert degrees to gradians?

Accepted Answer

Multiply by 10/9 or 400/360. For example, 90° = 100 gradians.

Question 3

What's the difference between degrees and radians?

Accepted Answer

Degrees divide a circle into 360 parts (historical, from Babylonians). Radians use the mathematical relationship where 2π radians = 360°, making calculus simpler.

Question 4

When should I use radians vs degrees?

Accepted Answer

Use degrees for everyday angles and navigation. Use radians for mathematics, physics, and programming where trigonometric functions expect radian input.

° to grad Converter

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