Carbon intensity, day-ahead power prices and the best hours to run flexible compute across the main European data-centre markets, refreshed every 10 minutes.

Across 420 hospitals' own price files, a moderate ER visit is listed at a median $1,285 while insurers pay $288.

A FIRE simulator that calculates, day by day, when you can leave a high-income job

A free collection of calculators showing how tax, welfare, and probability results are calculated