Turn to Gradian (turn to gon)
Result
400 Gradian
Formula
gon = turn × 400
1 turn = 400 gon, and 1 gon = 0.0025 turn.
A full turn is 360°, 2π radians or 400 gradians, so 1 rad = 180/π ° (about 57.29578°) and 1 gradian = 0.9°.
Worked examples
- 1 turn × 400 = 400 gon
- 10 turn × 400 = 4,000 gon
- 100 turn × 400 = 40,000 gon
Common mistakes
- Calculators and spreadsheet trigonometry functions usually expect radians: sin(30) in radian mode is −0.988, not 0.5.
- Compass bearings run clockwise from north; mathematical angles run anticlockwise from the positive x-axis.
Turn to Gradian table
| Turn (turn) | Gradian (gon) |
|---|---|
| 1 | 400 |
| 2 | 800 |
| 5 | 2,000 |
| 10 | 4,000 |
| 20 | 8,000 |
| 50 | 20,000 |
| 100 | 40,000 |
| 1,000 | 400,000 |
The units
- Turn (turn)
- 1 Turn = 360 Degree.
- Gradian (gon)
- 1 Gradian = 0.9 Degree.
Sources for these factors
- The International System of Units (SI Brochure), 9th edition — BIPM
- Guide for the Use of the International System of Units (SP 811), Appendix B: conversion factors — NIST
Last reviewed against these sources. An automated check recomputes every factor from its definition on each build. How we check accuracy