Speed vs revenue calculator
Estimate how much revenue you gain by making pages or checkout faster.
How it works
Each extra 100 ms lowers conversion by a small, compounding share. Speeding up raises it by the same rule, applied to your sessions and order value.
conversion at target = conversion × (1 + loss)^(Δms ÷ 100)Questions
Is 1% per 100 ms right for us?
It’s a widely quoted rule of thumb. Your own data, from comparing fast and slow sessions, is better.
Which page matters most?
Usually checkout and product pages: delays there sit right before the money.