DIY & garden calculatorsLess guesswork. More getting it right.

Practical calculators for the things you build, fix and grow. Plan your materials with local units and product sizes, all in one place.

For the things you build, fix & grow.

Made for your projects

What’s on your to-do list?

A fresh lawn. A stronger fence. A space that feels more like you.
Whatever you’re planning, start with the right numbers.

5 practical calculatorsOne very useful toolbox.

Choose your starting point

Big ideas. Practical next steps.

The complete toolbox

Let’s work out the details.

Small measurements.
Better decisions.

5 calculators available

Thoughtfully simple

Measure twice.
Order once.

Useful tools start with clear assumptions, familiar units and a method you can follow.

See our approach

Made for your project

Your country. Your units.

Country-specific materials and formats, so you can plan in the way you already work.

Understand your answer

Clear from input to answer.

Calculations show their method, sources and assumptions alongside the result.

Built with care

Before you get started

Good questions.
Practical answers.

Which calculator should I use?

Search for a material or choose a project category. Each calculator describes what it helps you estimate.

How should I use my estimate?

Use it as a starting point for your materials planning. Check the assumptions and product details before ordering. Read our calculation methodology for more context.

Are these calculators made for Canada?

This toolbox brings together the local versions, with country-specific units, material sizes and terminology. Use the country selector to explore other regions.

A little less guesswork.A lot more getting things done.

Keep DIYSums handy

Open your browser’s menu and choose Add to Home Screen or Install app.

This lightweight app needs an internet connection. Your calculator inputs stay on your device.

Share calculator