The fee is not fixed but what matters is the size of the transaction (in bytes) and not the amount. So normally it's cheaper to move 1 thousand BTC from a singl

The fee is not fixed but what matters is the size of the transaction (in bytes) and not the amount. So normally it's cheaper to move 1 thousand BTC from a single address to an other than 0.1BTC from 10 addresses to 20 others.