All calculators
Every calculator on Inch Calculators, grouped by trade. More are added with each build.
Concrete and masonry
Concrete Calculator
Work out how much concrete you need for a slab, footing, column or steps. Cubic yards, exact bag count and the ready mix order.
Open calculator →Concrete Slab Calculator
Calculate concrete for a slab, plus the gravel sub base, the rebar or mesh, and the control joint spacing your slab thickness.
Open calculator →Concrete Block Calculator
Work out how many concrete blocks a wall needs, plus the mortar bags, the grout for filled cells and the rebar spacing.
Open calculator →Brick Calculator
Calculate how many bricks a wall needs by brick size and wythe count, plus the mortar bags and sand, with a waste allowance.
Open calculator →Landscaping
Gravel Calculator
Calculate how much gravel you need in cubic yards, tons and bags. Covers crushed stone, pea gravel and river rock, with depth.
Open calculator →Mulch Calculator
Work out how much mulch you need in cubic yards and 2 cubic foot bags. Depth guidance by mulch type, bulk versus bagged.
Open calculator →Topsoil Calculator
Calculate topsoil in cubic yards, bags and tons for lawns, beds and raised beds, including a soil blend recipe for raised bed.
Open calculator →Sod Calculator
Calculate how many sod slabs and pallets a lawn needs, with a cutting allowance and the soil preparation depth included.
Open calculator →Work and pay
Time Card Calculator
Add up a weekly time card with breaks, overnight shifts and overtime. Get decimal hours, hours and minutes, the regular.
Open calculator →Timesheet Calculator
Add up a weekly or biweekly timesheet. Overtime is calculated separately for each workweek, which is what the Fair Labor.
Open calculator →Work Hours Calculator
Work out hours between a start time and an end time, minus unpaid breaks. Handles overnight shifts and gives the answer.
Open calculator →Hourly to Salary Calculator
Convert an hourly rate into annual, monthly, biweekly and weekly gross pay, using your real hours per week and paid weeks per.
Open calculator →Time and a Half Calculator
Work out the time and a half rate, the overtime pay and the total gross for one workweek, with double time supported.
Open calculator →Interior finishes
Drywall Calculator
Work out how many drywall sheets a room needs, plus the joint compound, tape and screws, from the wall and ceiling area.
Open calculator →Tile Calculator
Calculate how many tiles and how many boxes a floor or wall needs, with the right waste factor for a straight or diagonal layout.
Open calculator →Paint Calculator
Work out how many gallons of paint a room needs, with doors and windows deducted, coats counted and the ceiling costed separately.
Open calculator →Grout Calculator
Estimate grout and thinset from tile size, joint width and joint depth, with the right trowel notch for the tile you are setting.
Open calculator →Roofing
Roofing Calculator
Calculate roof area, roofing squares, shingle bundles, starter strip, ridge cap, underlayment and nails from your building.
Open calculator →Roof Pitch Calculator
Convert roof pitch to degrees, slope percentage and the pitch multiplier. Enter rise and run, an angle, or a pitch ratio, and get.
Open calculator →Gutter Calculator
Work out gutter length, the right gutter and downspout size for your roof area, how many downspouts you need, and the material.
Open calculator →Framing and lumber
Stair Calculator
Work out riser height, tread depth, total run and stringer length from your total rise. Includes the 7 to 11 rule, the 2R plus T.
Open calculator →Board Foot Calculator
Calculate board feet from thickness, width and length, with quarter measure thickness, nominal versus actual sizing and a total.
Open calculator →Area and geometry
Square Footage Calculator
Calculate square footage for rectangles, circles, triangles, trapezoids and L-shaped rooms. Converts to square metres and square.
Open calculator →Cubic Yard Calculator
Convert any length, width and depth into cubic yards, cubic feet and cubic metres. The unit every bulk material in the United.
Open calculator →Electrical and solar
Voltage Drop Calculator
Calculate voltage drop over a wire run in copper or aluminium, check it against the 3 percent guideline, and see the smallest.
Open calculator →Solar Panel Calculator
Estimate the solar system size and panel count your home needs from your monthly electricity use, your peak sun hours and real.
Open calculator →Electricity Cost Calculator
Work out what any appliance costs to run per hour, day, month and year from its wattage, your hours of use and your rate per kWh.
Open calculator →Pool and spa
Pool Volume Calculator
Work out how many gallons your pool holds, for rectangular, round and oval pools with a sloping floor. Every chemical dose.
Open calculator →Pool Chemical Calculator
Work out the exact dose to move chlorine, pH, alkalinity, calcium hardness or stabiliser to target, based on your pool volume.
Open calculator →Pool Salt Calculator
Work out how much salt a salt chlorine generator needs to reach target salinity, in pounds and in 40 lb bags, from your current.
Open calculator →Heating and cooling
BTU Calculator
Estimate the BTU capacity a room needs for cooling or heating, adjusted for sun exposure, occupancy, kitchens and climate zone.
Open calculator →AC Sizing Calculator
Estimate the air conditioner tonnage and furnace capacity a home needs by square footage and climate zone, with a plain warning.
Open calculator →Cost estimators
Concrete Slab Cost Calculator
Estimate what a concrete slab costs, split into concrete, gravel base, reinforcement, forms and labour, with the finish type.
Open calculator →Roof Replacement Cost Calculator
Estimate a roof replacement by squares, material type, pitch and the number of layers to tear off, with the dumpster and permit.
Open calculator →Bathroom Remodel Cost Calculator
Estimate a bathroom remodel by size and scope, with the plumbing move priced separately because it is the single biggest cost.
Open calculator →Moving Cost Calculator
Estimate a move by home size and distance, using hourly crew rates for a local move and weight plus mileage for a long distance.
Open calculator →