Free calculators

Insulation calculators

R-values, depth, coverage and what an upgrade actually saves.

15 calculators

Attic Insulation

How much insulation an attic needs to reach a target R-value, and how deep that is..

Wall Insulation

Insulation for wall cavities, where the stud depth limits how much R-value will physically fit..

Floor Insulation

Insulation between floor joists over an unheated space, and the depth it needs..

Crawl Space

Insulation for a crawl space, whether it is insulated at the floor above or at the walls..

Basement Insulation

Insulation for basement walls and rim joists, where moisture decides the material..

Garage Insulation

Insulation for garage walls and ceiling, including the wall shared with the house..

Insulation Thickness

Convert a target R-value into inches for any common insulation material..

Blown-In

Bags of blown insulation for an attic, from the area and the R-value you are aiming at..

Spray Foam

Spray foam depth and cost for a target R-value, for open and closed cell..

Batt Insulation

Batt insulation for walls or joist bays, in square feet and packs..

Rigid Foam

Rigid foam board thickness and sheet count for a target R-value..

Cellulose

Cellulose insulation depth, bags and cost for an attic or a dense-packed wall..

Fibreglass

Fibreglass insulation, batt or blown, for a target R-value..

Insulation Coverage

How far a bag of insulation goes at a given depth, and how many the job needs..

Insulation Quantity

How much insulation a space needs, in inches, square feet and bags..

Beyond the numbers

Tools that produce something you can send

Invoice Generator

Build a clean, itemised invoice and print it to PDF.

Open tool

Estimate Generator

Turn a scope of work into a priced estimate the customer can approve.

Open tool

Work Order Generator

Write the job down before the technician leaves: what, where, who, and what they need to take with them..

Open tool

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