Pevlika Browser Apps

Roofing Calculator

Roof area, squares and shingle bundles from footprint and pitch.

Runs in your browser — nothing is uploaded
Units

—

Material estimates only — add waste, confirm quantities with your supplier and follow local building codes. Not an engineering guarantee.

How to use Roofing Calculator

  1. Enter your values — the unit for each field is shown next to it.
  2. The result updates instantly as you type.
  3. Copy the results, or change inputs to compare scenarios.

Formula & assumptions

Roof area = footprint × √(1 + (pitch ÷ 12)²)

1 square = 100 ft²; about 3 bundles per square

Roof Pitch CalculatorRoof pitch, angle and slope from rise and run. Square Footage CalculatorAdd up the area of rooms or spaces in square feet or square metres. Insulation CalculatorInsulation thickness for a target R-value, plus packages. Paint CalculatorHow much paint you need for a room, including coats and openings.