About BuffCalc

Last updated: October 3, 2026

BuffCalc is a free toolkit for EA Sports FC 27 Ultimate Team players. It started as a chemistry calculator — pick 11 players, see the squad chemistry score out of 33 — and grew into a small set of honest, no-sign-up tools: chemistry style guides, an EA tax calculator, a chemistry style finder, a boost calculator, and a PlayStyles guide.

How it works

Everything runs in your browser. There are no accounts, no sign-ups, and your squad data never leaves your device — share links simply encode your squad in the URL so you can send it to a friend.

Unofficial fan-made project

BuffCalc is an unofficial fan-made project. It is not affiliated with, endorsed by, or connected to EA Sports. EA Sports FC is a trademark of Electronic Arts Inc. Chemistry rules and values are based on publicly available FC 27 guides and may change with game updates — always double-check in game before spending coins.

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