Free tools

Calculators that show the whole cost

Every calculator runs in your browser. No account, no email, nothing stored. Where fees change the answer, we price it against the published schedules on both venues we work with — because that is the number most calculators quietly leave out.

Live market tools

By coin

By leverage

These are free because we are paid by exchanges, not by you. Registering through our links gets you half your BingX fees back for life, or LBank perpetuals at 0.0015% / 0.003%. See the comparison.