All 100 Calculators

Paint CalculatorEstimate gallons of wall paint for a rectangular room, including doors, windows, coats and waste.

Primer CalculatorEstimate primer gallons for walls before painting, with openings, coats and coverage included.

Flooring CalculatorEstimate total flooring area and the number of boxes needed after a waste allowance.

Tile CalculatorEstimate tile pieces and boxes from room size, tile dimensions, grout gap and waste.

Drywall Sheet CalculatorEstimate 4×8 drywall sheets for four walls and an optional ceiling, with openings and waste.

Wallpaper Roll CalculatorEstimate wallpaper rolls from room perimeter, wall height, openings, roll coverage and waste.

Concrete Slab CalculatorEstimate cubic yards of concrete for a rectangular slab, including a waste allowance.

Concrete Footing CalculatorEstimate cubic yards for repeated rectangular footings or grade beams.

Gravel CalculatorEstimate cubic yards and tons of gravel from area, depth and an adjustable material density.

Mulch CalculatorEstimate cubic yards and bags of mulch for a landscape bed.

Topsoil CalculatorEstimate cubic yards and bags of topsoil from area and fill depth.

Sod CalculatorEstimate sod square footage, pieces or pallets after a waste allowance.

Paver CalculatorEstimate paver count from patio area, paver dimensions, joint gap and waste.

Fence Picket CalculatorEstimate fence pickets from total fence length, picket width, spacing and waste.

Fence Post CalculatorEstimate line posts from fence length and maximum post spacing, plus corners and gate posts.

Deck Board CalculatorEstimate deck boards from deck size, board dimensions, spacing, stock length and waste.

Roofing Shingle CalculatorEstimate roofing squares and bundles from total roof surface area and waste.

Insulation CalculatorEstimate insulation packages from surface area, package coverage and waste.

Baseboard Trim CalculatorEstimate linear feet and stock pieces of baseboard trim for a rectangular room.

Crown Molding CalculatorEstimate crown molding linear feet and stock lengths for a rectangular room.

Board Foot CalculatorCalculate board feet for lumber from thickness, width, length and quantity.

Plywood Sheet CalculatorEstimate plywood or OSB sheets from total coverage area, sheet size and waste.

Wall Stud CalculatorEstimate wall studs from wall length, on-center spacing, end studs and extras.

Brick CalculatorEstimate bricks for a wall from wall size, brick face dimensions, mortar joint and waste.

Ceiling Tile CalculatorEstimate suspended-ceiling tiles and cartons from room size, tile dimensions and waste.

Appliance Electricity Cost CalculatorEstimate monthly and annual electricity use and cost for an appliance.

Air Conditioner Electricity Cost CalculatorEstimate monthly and annual electricity use and cost for an air conditioner.

Space Heater Electricity Cost CalculatorEstimate monthly and annual electricity use and cost for a space heater.

Ceiling Fan Electricity Cost CalculatorEstimate monthly and annual electricity use and cost for a ceiling fan.

Dehumidifier Electricity Cost CalculatorEstimate monthly and annual electricity use and cost for a dehumidifier.

Pool Pump Electricity Cost CalculatorEstimate monthly and annual electricity use and cost for a pool pump.

Refrigerator Electricity Cost CalculatorEstimate monthly and annual electricity use and cost for a refrigerator.

Electric Dryer Cost CalculatorEstimate monthly and annual electricity use and cost for an electric dryer.

Electric Water Heater Cost CalculatorEstimate monthly and annual electricity use and cost for an electric water heater.

Standby Power Cost CalculatorEstimate monthly and annual electricity use and cost for standby electronics.

EV Home Charging Cost CalculatorEstimate the electricity and cost required to add a given amount of energy to an EV battery at home.

EV Charging Time CalculatorEstimate how long an EV charge will take from starting state of charge to target state of charge.

Solar Payback CalculatorEstimate simple payback time and lifetime net savings for a solar project.

Home Battery Runtime CalculatorEstimate how long a home battery can support a steady electrical load.

Generator Fuel Cost CalculatorEstimate generator fuel gallons and operating cost from burn rate and runtime.

Generator Size CalculatorEstimate a generator wattage target from total running load and the largest startup surge.

LED Lighting Savings CalculatorEstimate electricity and dollar savings from replacing higher-wattage bulbs with LEDs.

Heat Pump vs Electric Heat Savings CalculatorCompare annual electricity cost for a heat pump versus electric resistance heating.

Mini-Split Size CalculatorEstimate a rough mini-split cooling capacity range from floor area, ceiling height and climate load.

Window AC Size CalculatorEstimate a rough window-air-conditioner BTU target from room size, ceiling height and sun exposure.

Gas Trip Cost CalculatorEstimate gallons of fuel and fuel cost for a trip from distance, MPG and gas price.

EV Road Trip Charging Cost CalculatorEstimate charging energy and cost for an EV road trip.

Vehicle Cost Per Mile CalculatorEstimate all-in vehicle cost per mile from fixed annual costs, fuel and maintenance.

Commute Cost CalculatorEstimate weekly, monthly and annual driving cost for a work commute.

EV vs Gas Cost CalculatorCompare annual energy cost for an EV and gasoline vehicle over the same mileage.

MPG Savings CalculatorCompare annual fuel use and cost between two MPG ratings.

MPG ↔ L/100 km ConverterConvert between US miles per gallon and liters per 100 kilometers.

Tire Size CalculatorCalculate tire sidewall height, overall diameter and circumference from a metric tire size.

Tire Speedometer Difference CalculatorEstimate speedometer error after changing tire size.

Tire Sidewall Height CalculatorCalculate tire sidewall height in millimeters and inches from width and aspect ratio.

Towing Fuel Cost CalculatorEstimate fuel gallons and cost for a towing trip using towing-specific MPG.

Road Trip Cost Split CalculatorSplit fuel, toll, parking and lodging costs evenly across travelers.

Car Wash Subscription Break-Even CalculatorFind how many washes per month make a car-wash subscription cheaper than paying individually.

Car Depreciation CalculatorEstimate future vehicle value using a constant annual depreciation rate.

Annual Vehicle Ownership Cost CalculatorCombine depreciation, insurance, registration, maintenance and fuel into annual and per-mile cost.

Oil Change Mileage CalculatorEstimate the next oil-change mileage and remaining miles from your chosen interval.

Lease Mileage Tracker CalculatorCompare current lease mileage with a straight-line mileage allowance for elapsed time.

Driving Range CalculatorEstimate gasoline driving range from tank size and expected MPG.

Road Trip Time CalculatorEstimate total trip time including planned breaks.

Toll + Fuel Trip Cost CalculatorCombine estimated fuel cost with tolls and parking for a driving trip.

Moving Box CalculatorEstimate a starting box count from home size and how densely packed the household is.

Moving Truck Size CalculatorEstimate moving-truck cargo volume from household contents and loading efficiency.

Storage Unit Size CalculatorEstimate storage floor area from item volume, stackable height and packing efficiency.

Room Square Footage CalculatorCalculate floor area for a rectangular room.

Room Volume CalculatorCalculate room volume in cubic feet and cubic meters.

TV Size by Viewing Distance CalculatorEstimate a comfortable 16:9 TV diagonal range from seating distance.

TV Viewing Distance CalculatorEstimate a comfortable viewing-distance range from TV diagonal size.

Projector Throw Distance CalculatorCalculate projector placement distance from image width and throw ratio.

Projector Screen Dimensions CalculatorConvert screen diagonal and aspect ratio into exact image width and height.

Screen PPI CalculatorCalculate pixel density from display resolution and diagonal size.

Rug Size Fit CalculatorEstimate a maximum centered rug size after leaving a chosen border around the room.

Curtain Width CalculatorEstimate total curtain fabric width and per-panel finished width from window width and fullness.

Moving Cost CalculatorEstimate local moving cost from crew time, hourly rate, truck fees, mileage and materials.

Packing Tape CalculatorEstimate rolls of packing tape from box count, tape used per box and roll length.

Curtain Fabric Yardage CalculatorEstimate fabric yardage for simple curtain panels from rod width, fullness, drop, hems and fabric width.

Party Drink CalculatorEstimate total drink servings for a party using guest count, duration and drinks-per-hour assumptions.

Party Ice CalculatorEstimate pounds and bags of ice for drinks and chilling.

Pizza Party CalculatorEstimate pizzas from guest count, slices per person and slices per pizza.

Taco Bar CalculatorEstimate tacos, tortillas and filling weight for a taco bar.

BBQ Meat CalculatorEstimate raw meat pounds from guests, cooked portion size and cooking yield.

Coffee for a Crowd CalculatorEstimate brewed coffee gallons, cups and grounds for a group.

Wedding Alcohol CalculatorEstimate alcoholic drink servings and bottle counts for a wedding reception.

Wedding Cake Serving CalculatorEstimate cake servings to order from guest count and an extra-serving allowance.

Wedding Invitation CalculatorEstimate invitation households plus extras from total guests and average guests per invitation.

Buffet Food CalculatorEstimate total entree and side-dish pounds for a buffet.

Cocktail Batch CalculatorScale a simple spirit-and-mixer cocktail recipe for a party.

Party Punch CalculatorEstimate punch gallons from guest count, cups per guest and serving size.

Turkey Size CalculatorEstimate turkey weight to buy from guest count, pounds per person and leftover preference.

Pasta for a Crowd CalculatorEstimate dry pasta pounds from guest count and ounces per person.

Rice for a Crowd CalculatorEstimate dry rice cups and pounds for a group.

Yarn Skein CalculatorEstimate whole skeins from project yardage, skein yardage and a waste allowance.

Fabric Yardage CalculatorEstimate fabric yards for repeated rectangular pieces laid across a chosen fabric width.

Quilt Backing Fabric CalculatorEstimate quilt-backing yardage from quilt size, overhang and fabric width.

Epoxy Resin Volume CalculatorEstimate epoxy resin volume for a rectangular pour in liters, gallons and fluid ounces.

3D Printing Cost CalculatorEstimate filament, electricity and machine-time cost for a 3D print.