Everything is calculated in your browser, and no data is uploaded. The tools cover fees, exchange rates, fractional shares, P&L, recurring buys and position size.
Enter a buy amount to get Binance's charge, the market spread and the one-way cost rate.
Type in a reference rate and see how much CNY a target amount takes.
How many shares does $5 buy? What does the quantity you want cost?
Same money, two routes — exactly how much cost differs.
Holding × yield — estimate a year's dividends.
Recurring buys — estimate final invested and total holdings.
Buy price, sell price, quantity — your P&L and return.
Is the market open now? Regular, extended and 24h tokens.
Account, risk %, stop — a sensible position size.