Measuring & layout calculators

Area, pitch, feet-and-inches arithmetic and land size — the numbers you work out before anything gets ordered. Every one works in feet and inches or in metric — flip the switch at the top and the numbers you have typed convert with it.

• Square footage area of a room, wall or lot
• Roof pitch pitch, angle, grade & rafter multiplier
• Feet & inches add, subtract, multiply tape measurements
• Acreage acres & hectares from a lot’s sides
• Arc & radius radius, arc length & layout offsets from span and rise

Which one do I need?

The arithmetic before anything is ordered: areas, pitches, lot sizes, and adding up tape readings without a mistake.

• Area of a room, wall or lot? Square footage calculator →
• Pitch, angle or grade of a roof? Roof pitch calculator →
• Adding up tape readings with fractions? Feet and inches calculator →
• How many acres is the lot? Acreage calculator →

The other drawers

• Béton et maçonnerie
• Charpente et menuiserie
• Terrain et aménagement
• Finitions et intérieur
• Électricité
• Plomberie et CVC
• Atelier et équipement
• Conversions
• Tous les outils