About SoSoUseful

SoSoUseful is a growing collection of small, practical tools for the questions that come up in everyday life: how often does it snow here at Christmas? What temperature should a fan oven be for this recipe? How many tiles do I need for the bathroom?

Every tool comes with a plain-English guide that explains how the answer is worked out, which official figures it uses and what to watch out for. We link to our sources so you can check them yourself.

What we care about

• Free, with no sign-up. No accounts, no cookies, no ads.
• Transparent. We show the formulas and cite our sources.
• Private. Your numbers are worked out in your browser and never stored.

Our tools give estimates and aren't a substitute for professional advice. Browse all tools.