About Planicalc
Planicalc is a free set of calculators for people who renovate or build. The idea is simple: enter your sizes once and know exactly what to buy, without guesswork and without extra trips to the store.
The site is made by Sergei, who lives in Finland and studied construction at a vocational college. Every calculator is based on common building practice and on consumption figures from manufacturers. Each page shows its formula and an example so you can check the result yourself.
The calculators are free, need no registration and do not use tracking cookies. If you notice a mistake or want a new calculator, please write to us — every message is read.