About Calcento

Who built this

Calcento was built by Adil Drouz, an HR Manager with over 10 years of hands-on experience across human resources, payroll, learning & development, and recruitment. That day-to-day work — answering “what would a 5% raise actually mean for my paycheck?” or “what is our turnover rate this quarter?” — is exactly what Calcento is built to make faster.

What Calcento is

Calcento is a free collection of calculators and plain-English guides for the kind of math that comes up around work and pay — figuring out a raise, totaling up overtime, measuring employee turnover, or working out how much paid time off has accrued. Each tool runs instantly in your browser, with no sign-up and no spreadsheets required.

Why it exists

These calculations are simple in principle but easy to get wrong, and the answers genuinely matter — they affect paychecks, team budgets, and workforce planning. Too many existing tools bury a one-line formula under clutter or ask you to create an account first. Calcento is built to be fast, clear, and honest: type your numbers, get your answer, and read a straightforward explanation of how it works if you want one.

Accuracy and transparency

Every calculator is built around a transparent formula that is explained in the content beneath the tool, so you can see exactly how each result is produced and verify it yourself. Guides are written in plain language with realistic worked examples. Where rules vary by country, employer, or tax situation, that is stated rather than glossed over.

An important note

Calcento is for general guidance only. The calculators produce pre-tax estimates and are not a substitute for professional financial, legal, or tax advice. Please see the disclaimer for the full details, and verify anything important with a qualified professional.

Get in touch

Have feedback, spotted an error, or want to suggest a calculator? Visit the contact page or connect on LinkedIn.