How to use it
Enter the trade size and base rate for this trade (or this kind of trade), then add your BNB discount percentage and referral rebate percentage, and hit Calculate. The tool lays out four results: the original fee, BNB discount only, referral rebate only, both stacked and paid net, plus the total you save and what share of the original fee that is. The two levers work differently — one is a discount on how you pay the fee, one is a rebate — so they generally apply at the same time, which is why stacking them saves the most.
The defaults (base rate 0.1, BNB discount 25, referral 20) are example values used only to demonstrate the math. Binance's real rates change by product, VIP tier and current promotions, so treat whatever Binance's official fee page shows right now as the source of truth (checked June 2026). This tool runs entirely in your browser: it doesn't connect to the internet, doesn't read your account, and doesn't reflect any live Binance data. Results are estimates, not investment advice. Also confirm Binance is available in your country before you register.
To understand how each of these switches works on its own, see the complete BNB discount guide and referral rebate and how it works; for the full picture of the fee structure, see the complete Binance fees guide.