Compute EC _anything from EC ₅₀

This calculator computes EC ₈₀ or EC ₉₀ (etc.) from EC ₅₀. How?

1. Enter EC ₅₀

I will enter:

EC ₅₀ as concentration. For 1nM, enter '1e-9'.

log(EC ₅₀ ) as log(concentration, M). For 1nM, enter '-9'.

Value:

Slope factor =

(If you don't know, enter '1.0')

Calculate the EC

Enter '80' or '90' ... without the quotes.

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