The gradian divides a full circle into 400 equal parts, aligned with the decimal measurement system.
Proposed as part of the post-French Revolution decimal measurement movement, it remains in limited use today, mainly in geodesy and surveying.
Measurement system: Non-SI, decimal system unit. SI equivalent: 1 gon = π/200 rad = 0.9°.
Gradian facts
- Unit name
- Gradian
- Symbol
- gon
- Category
- Angle
- Measurement system
- Non-SI, decimal system unit
- SI equivalent
- 1 gon = π/200 rad = 0.9°
- Common uses
- Geodesy, land surveying, some European engineering applications
Definition of the gradian
The gradian divides a full circle into 400 equal parts, aligned with the decimal measurement system.
Measurement system and SI relationship
Non-SI, decimal system unit
SI equivalent: 1 gon = π/200 rad = 0.9°
History of the gradian
Proposed as part of the post-French Revolution decimal measurement movement, it remains in limited use today, mainly in geodesy and surveying.
Where is the gradian used?
Geodesy, land surveying, some European engineering applications