Outdoor & Pressure Washing Calculators
PSI settings, water usage, chemical mix ratios and time estimates for outdoor and pressure washing.
Pressure Washer PSI Calculator
Determine the correct PSI setting for different surfaces and cleaning tasks.
Patio Cleaning Calculator
Calculate time, water usage and detergent for patio and paving cleaning.
Driveway Cleaning Calculator
Estimate time and resources for driveway cleaning by area and surface type.
Decking Cleaning Calculator
Calculate cleaning time and product volume for wooden or composite decking.
Gutter Cleaning Calculator
Estimate time and equipment needed for gutter cleaning by property size.
Roof Cleaning Calculator
Calculate soft wash solution volume and time for roof cleaning.
Fence Cleaning Calculator
Estimate time, water and treatment product for fence cleaning and treatment.
Water Usage Calculator
Calculate total water consumption for pressure washing jobs by duration and flow rate.
8 free calculators in Outdoor & Pressure Washing
Outdoor and Pressure Washing Calculators
Outdoor cleaning and pressure washing require the right pressure settings, chemical concentrations and realistic time estimates. Our calculators help you plan every aspect of exterior cleaning jobs from patios and driveways to gutters and roofs.
The pressure washer PSI calculator recommends the correct pressure setting for different surfaces — too high and you risk damaging the surface, too low and the cleaning won't be effective.
Our patio cleaning calculator and driveway cleaning calculator estimate time, water consumption and detergent quantities for the most common outdoor cleaning jobs in the UK.