Pipe Insulation Thickness

Required thickness from cylindrical conduction at a target surface temp.

Run the calculator

Formula and source

Heat loss / gain through pipe insulation: Q = (2π × k × L × ΔT) / ln(r2 / r1) for cylindrical insulation. Surface temperature compared against condensation / safe-touch limits.

ASHRAE Fundamentals by name; ASTM C680 for surface-condition calculation.

Audience

This tile is built for hvac and the adjacent professions in the HVAC group. The interactive calculator runs entirely in your browser. No account, no fee, no advertising, no tracking.

Related tools

Posture

Rough Logic answers the math question the working professional asks on the job. The site is a calm, fast, ad-free, account-free, ever-free reference. It does not interpret code. It does not replace the licensed professional. It does not store your inputs. The Authority Having Jurisdiction governs all installations and inspections.