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.
5 tools
- 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
Nothing in this drawer matches. Try the full index, which searches every tool.
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
- Concrete & masonry
- Framing & carpentry
- Site & landscape
- Finishes & interior
- Electrical
- Plumbing & HVAC
- Shop & equipment
- Conversions
- Every tool
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Calculators that fit your work — by email, optional
Drop your email and tick the box: at most one short note every two weeks with calculators related to the ones you use — here and on bentright.com and sparkytools.net. One list across the three, one-click out, and nothing is sent until you confirm from your inbox.