ToolsLiving field guide

Tools & calculators

Calculators for sizing, converting and checking before you buy or start a job.

Fraction to decimal converter (inches and mm)

Convert .625, 5/8, 1-3/16 or 25 mm to decimal inches, the nearest 1/16, 1/32 and 1/64 inch, and millimeters, with a 1/16-inch chart.

Pick the pressure washer tip color for the surface (0° red to 40° white and black soap) and work out the nozzle size number from GPM and PSI.

Add running watts and the largest additional starting load to size a generator, with a sourced wattage table for jobsite tools and a worked example.

Pick the tools you run together to get the inverter continuous and surge rating and the 12 V battery draw, from sourced running and starting watts.