About Toolertools

Toolertools is a collection of fast, free calculators and practical tools. No sign-ups, no paywalls, no twenty-paragraph introductions before the tool you came for.

We'd rather publish one genuinely useful calculator than ten thin variations of it. Every tool shows its formulas, its assumptions, and its sources — see our methodology for how each calculator is built and tested.

We started with Home & DIY tools and added Money & Work next, expanding deliberately from there. If a tool gives you a number you'd bet money on, we've done our job; if something looks off, the assumptions section of each calculator explains exactly how the result was produced.

A note on estimates

Our calculators produce planning estimates based on industry-average values. Material densities, panel sizes, and prices vary by region and supplier — always confirm final quantities with your supplier or contractor before ordering.