Construction & Materials
Volume, material and layout calculators for concrete, decking, fencing, paving, roofing and stairs.
Finance & Work
Pay, pricing and time calculators for wages, raises, overtime and markup.
Home & Utilities
Everyday household calculators for pools, appliances and energy costs.
Date & Time
Calendar-aware calculators for ages, dates and durations.
Construction & Materials
Sand Calculator
Estimate how much sand you need by volume, weight and bag count from your project dimensions.
Topsoil Calculator
Work out how many cubic yards, bags and pounds of topsoil your garden bed or lawn project needs.
Stone Calculator
Calculate how much gravel or crushed stone you need in cubic yards, tons and bags.
Deck Board Calculator
Calculate how many deck boards you need based on deck size, board width, gap and waste.
Fence Calculator
Estimate fence panels, posts, rails and concrete from your fence length and layout.
Paver Calculator
Find how many pavers you need for a patio or walkway, including waste allowance.
Roof Pitch Calculator
Convert rise and run into roof pitch, slope percentage, angle and rafter length.
Stair Calculator
Calculate riser height, tread depth, stringer length and stair angle from your total rise.
Finance & Work
Markup Calculator
Find your markup percentage, selling price, profit and margin from cost and price.
Pay Raise Calculator
Calculate your new salary, raise amount and pay-period equivalents from a raise percentage.
Overtime Calculator
Calculate overtime pay, gross pay and your effective hourly rate from hours worked.
Home & Utilities
Pool Water Volume Calculator
Calculate your pool volume in gallons or litres from its shape and dimensions.
Electricity Cost Calculator
Calculate the daily, monthly and annual running cost of any appliance from its wattage and usage.