About Quick Calculators

Tools to dig yourself out of a financial hole — built by someone who's been in one.

These calculators are inspired by the period when I was getting my own finances in order. A client didn't pay, the buffer was gone, and I realised I had no clue where my money went. 


So I developed this series of calculators. A random collection of things I needed myself, that are now super easy to make available to the public with AI tools. Some are based on google sheets I built over the years, others on my personal financial journey, or on some fascination I have for a certain topic.

(Some are there because my bots tell me they're good for SEO)

The full story is in how I dug myself out of a financial hole.

Everything here is free and independent. Maybe some tools will see some monetization in the future, but we'll see. 


Built by thysroes

📥 Free monthly budget sheet

One page: what comes in, what goes out, and what's left — calculated automatically. Green means room to save or pay off debt; red shows exactly where to cut.

Download the budget sheet (Excel)

Works in Excel, Google Sheets, Numbers and LibreOffice. Also available in Dutch. Work in progress, v2026 Spring.