Free online calculator
Circumference & Divisions Calculator
Mark equal divisions on a pipe or plate — circumference, arc length and chord per division.
How it works
- Circumference = π × D
- Arc per division = circumference ÷ n
- Chord = D × sin(180° ÷ n)
Worked example
Ø300, 6 divisions → C ≈ 942.5 mm, arc ≈ 157.1 mm, chord = 150 mm.
Get the full app — 15-day free trial →
Reference tool — always validate against project specs. Not a substitute for a qualified engineer.