Free · UK units · No sign-up
Calculators & Charts for Tool Owners
The jobs that come after the purchase. What torque your wheel nuts take, which drill bit a No.8 screw or a sleeve anchor needs, whether a Ryobi battery fits an Erbauer, how long a power station runs the camping fridge, what the mitre saw should read for a coving corner. Metric, UK brands, works on a phone in the shed.
- Size finder
Fixings Finder
Pick what you are fixing into and the fixing itself. Get the pilot hole, plug, masonry bit, hole depth and SDS bit in millimetres.
rotary-hammersDrillsImpact DriversOpen it → - Compatibility checker
Battery Hub
Which batteries fit which tools in the UK, what the charger lights mean, and how long a pack really lasts on the job.
DrillsImpact DriversImpact WrenchesCircular Saws+10 moreOpen it → - Torque lookup
Wheel Nut Torque Chart
Find your car, van or caravan and get the torque in Nm, the socket size, and the order to do them up in.
Impact WrenchesSocket Setstyre-inflatorsOpen it → - Angle calculator
Mitre & Bevel Angle Calculator
Type in the corner, get the saw setting. Skirting and architrave, frames with any number of sides, and coving cut nested or flat.
Mitre SawsTrack Sawsmeasuring-toolsOpen it → - Settings chart
Pressure Washer Settings
Pick the job and get the safe pressure in bar and psi, the nozzle, how far back to stand, and the thing that will wreck it.
Pressure WashersOpen it → - Runtime calculator
Power Station Runtime & Sizing
Add the fridge, the CPAP and the kettle. See hours of runtime for each of our picks, the watt-hours you need, and solar recharge time for your region.
power-stationstyre-inflatorsOpen it → - Code decoder
Tool Model Number Decoder
Paste a part number and find out the brand, the platform, and whether that price includes batteries.
DrillsImpact DriversImpact WrenchesCircular Saws+18 moreOpen it →
Why these exist
Built for the questions owners actually ask
Most tool sites stop at the checkout. The questions that follow are the ones people ask on HotUKDeals, the Screwfix Community Forum and DIYnot every week: what size hole for this plug, what do I torque the wheel nuts to, does this battery fit that tool, what pressure is safe on the render, which way up does coving go in the saw. The answers exist, scattered across PDFs, forum threads and imperial charts written for somewhere else.
Everything here uses UK gauges, brands and units, cites the manufacturer data behind it, and links to the picks we already rank when you need the hardware. They are free, they never ask for an email, and they are built to be used one-handed on a phone.
Something missing? A blade and disc chooser by material, a laser level accuracy and fall calculator, a sanding grit chart and a deck screw calculator are next on the bench.