All Practical Calculators

Estimate concrete volume for slabs, footings, columns and other pours.

Estimate cement and sand quantities for common mortar, plaster and screed mixes.

Estimate brick quantities for walls using wall size, brick size and waste allowance.

Estimate roof sheet quantities, overlaps and coverage for practical roofing layouts.

Estimate roof truss geometry from span, length and height inputs.

Estimate tile quantities using area, tile size, grout gaps and waste.

Estimate paint requirements from wall area, coats and coverage rate.

Check square layouts and diagonal measurements for setting out work.

Compare lifted load against crane capacity at pick-up and placement radius.

Estimate outrigger or support pressure for crane mats and lifting planning.

Estimate sling tension changes caused by sling angle and load share.

Estimate weight for steel plate, pipe, tube, angle, channel, beams and bar.

Calculate full cones and truncated cones for fabrication and flat pattern planning.

Calculate pipe cut angles and layout values for mitered pipe work.

Calculate bolt hole positions around a flange pitch circle diameter.

Estimate welding rods, wire or consumables for fabrication planning.

Estimate plate rolling dimensions and practical rolling setup values.

Calculate bend allowance and flat pattern values for sheet metal work.

Calculate pulley RPM, belt length and speed relationships.

Prepare practical cabinet panel and cutting-list estimates.

Estimate motor electrical values for practical planning and checks.

Estimate voltage drop and cable sizing inputs for early electrical planning.

Estimate connected electrical load and current for single-phase or three-phase systems.

Estimate solar, battery and inverter requirements for off-grid planning.

Calculate break-even and selling hourly rates for labour and service work.

Estimate tool rental rates from cost, recovery time, overhead and profit.

Estimate vehicle loan repayments and finance cost.

Estimate fuel, service, insurance and other vehicle running costs.

Estimate loan repayments using amount, interest rate and term.

Estimate monthly bond or mortgage repayments.

Plan income, expenses and monthly budget balance.

Estimate savings growth over time.

Estimate investment growth with contributions and return assumptions.

Calculate assets minus liabilities for a personal net-worth snapshot.

Convert currency amounts for practical finance checks.

Convert between mm, cm, m, km, inches, feet, yards and miles.

Convert between common area units for site, land and workshop calculations.

Convert litres, cubic metres and other volume units.

Convert kilograms, tonnes, pounds and other mass units.

Convert Celsius, Fahrenheit and Kelvin.

Convert speed units such as km/h, m/s and mph.

Convert kPa, bar, psi and other pressure units.

Convert joules, kilowatt-hours and other energy units.

Convert watts, kilowatts, horsepower and other power units.

Convert seconds, minutes, hours, days and other time units.

Convert bytes, kilobytes, megabytes, gigabytes and terabytes.

Convert between common fuel consumption units.

Convert common kitchen and recipe measurements.

Convert degrees, radians and other angle measurements.