About Costlarity

Costlarity creates simple calculators that help people understand the real cost of everyday habits, spending, time use, and decisions. The tools are educational estimates, not professional advice.

Most financial, time, and lifestyle tradeoffs stay abstract because no one ever stops to run the numbers. Costlarity exists to make those numbers easy to get — fast, free, and without requiring an account.

Current calculators include the Doom Scroll Cost Calculator, the Subscription Cost Calculator, and the Impulse Spend Calculator. Each one takes about 30 seconds and requires no account.

All calculations run in your browser. Nothing is stored on a server. There's no account to create and no email required.