Trade calculators, one drawer
Type what you are measuring and the list narrows to it. Every tool takes metric or imperial, updates as you type, and gives you a number you can order from.
63 tools
Your most-used
Concrete & masonry
- Concrete yards, bags & volume from slab dimensions
- Concrete slab yards & bags for a floor, pad or patio
- Concrete footing yards & bags for strip and pad footings
- Concrete column yards & bags for round piers and sonotubes
- Concrete stairs concrete volume for poured steps
- Concrete bags bag count from a volume or dimensions
- Rebar grid count, linear length & ties
- Block wall concrete block count for a wall
- Brick brick count for a wall area
- Mortar bags of mortar for block or brick
Framing & carpentry
- Stairs riser count, riser & tread size, stringer length
- Board feet board footage of rough or dimensional lumber
- Studs stud count & plate length for a wall
- Joist spacing joist count & spacing to fill an opening
- Deck boards decking rows, boards & linear feet
- Rafter length common rafter cut length from run & pitch
- 3-4-5 square diagonal to prove a square corner
- Right triangle solve sides & angle from any two
- Lumber weight weight of a board or stack for handling
- Plywood sheets sheet count for a surface area
Site & landscape
- Gravel tonnes or yards of gravel for an area
- Mulch yards or bags of mulch by depth
- Topsoil yards or tonnes of soil by depth
- Asphalt tonnes of hot-mix for a paved area
- Sand tonnes or yards of sand by depth
- Fence posts, rails & pickets for a run
- Retaining wall block, cap & base-gravel takeoff
- Excavation dig volume, spoil swell & tonnage
- Slope & grade grade %, angle, ratio & drop
- Cut & fill cut, fill & net import or export
Finishes & interior
- Drywall sheets of drywall for walls and ceilings
- Paint litres or gallons of paint by coats
- Tile tiles & boxes for a floor or wall
- Flooring boxes of flooring for a room
- Baseboard linear length & pieces for a room
- Insulation bags or batts for an area
- Wallpaper rolls for a wall, with pattern repeat
- Grout grout volume & bags from tile & joints
Measure & layout
Electrical
Plumbing & HVAC
Shop & equipment
Conversions
- All converters the unit-conversion hub in one place
- mm to inches millimetres ↔ inches, with a tape fraction
- psi to kPa psi ↔ kPa ↔ bar
- AWG to mm² wire gauge ↔ area & diameter
- Cubic yards to tons volume ↔ weight by material density
- Fraction to decimal inch fractions ↔ decimal inches
- Degrees to % slope angle ↔ grade % ↔ ratio
No tool matches that yet. More calculators are on the way — try a broader word like “concrete”, “area” or “gravel”.
The whole drawer is open: concrete and masonry, framing, site and landscape, finishes, electrical, plumbing and HVAC, shop tools, and a full conversion hub. Type a word above and the list narrows to it. Doing conduit bending? That belongs on its own site — bentright goes deep on it.
New tools, now and then
We add calculators most weeks. Drop your email and get a short note when a new one lands — nothing else, no selling your address, one-click out.