---
name: estimatesmartfee
btcversion: 0.19.0
btcgroup: util
permalink: en/doc/0.19.0/rpc/util/estimatesmartfee/
---

estimatesmartfee conf_target ( "estimate_mode" )

Estimates the approximate fee per kilobyte needed for a transaction to begin
confirmation within conf_target blocks if possible and return the number of blocks
for which the estimate is valid. Uses virtual transaction size as defined
in BIP 141 (witness data is discounted).

Arguments:
1. conf_target      (numeric, required) Confirmation targ