Pipe Insulation Quantity Calculator
Estimate the material quantities around a pipe using its outer diameter, radial insulation thickness, and length.
A QUICK WALKTHROUGH
How to use this tool
- Enter the pipe outer diameter, insulation thickness, and pipe length.
- Calculate and review the insulation outside diameter, annulus area, volume, litres, and cladding area.
Geometric quantity only
This calculates geometry, not price. Insulation thickness needs separate heat-loss or condensation sizing. Ordinary fittings, supports, and product waste are not included. Preformed sections are usually sold per pipe metre.
Formula and units
Dᵢ = D + 2t (mm); A = π/4 × (Dᵢ² − D²) (mm²); V = A × 10⁻⁶ × L (m³); litres = V × 1000; cladding area = π × Dᵢ/1000 × L (m²).
Local calculation
All values are processed in your browser and are not uploaded or stored.
GOOD TO KNOW
Common questions
Does this size the insulation?
No. It calculates geometric quantities for a thickness you provide. Select thickness separately for heat-loss and condensation requirements.
Does it include fittings or waste?
No. Add allowances for fittings, supports, joints, and product waste separately.