## FAQ

**How does the calculator work?**

Every 100 blocks, we fit a Poisson regression model that estimates the expected number of blocks it will take for a transaction to confirm based on the gas price and the amount of gas used by a transaction based on data from the last 10,000 blocks. Since the relationships bewteen time and both gas price and gas used are non-linear, the gas price and the gas used are modeled as categorical variables.

1) below average

2) average

3) above average

4) fastest

1) median or below

2) median to 75th percentile

3) 75th to 90th percentile

4) 90th percentile and above