Grid Profit Simulator
Before you switch on a grid, work out the boring number first: for this range, this many grids and this much capital, how much does one grid actually earn? The figures below are an arithmetic estimate for a geometric grid, not a profit forecast — nobody can tell you in advance how many grids will fill or how far the price will run.
How it works: a geometric grid spaces every level by the same percentage; an arithmetic grid spaces every level by the same price difference. "Net profit per grid" = capital per grid × (per-grid gain − two fees), i.e. the gross estimate for one "buy low, sell high" round trip between two adjacent levels. It ignores funding, slippage, spread and price running away from your range. Use the real fee rate your account shows on Binance (maker/taker, BNB fee discount and VIP tier all change it). This tool runs entirely in your browser — nothing is sent, uploaded or saved.
How this tool works
A grid bot chops a price range into levels: it buys each time the price drops one level and sells each time it climbs one, pocketing the spread on the way back and forth. So "how much does one grid earn" comes down to just three things — the gain per grid, the money you put into each grid, and the two fees on the round trip.
In a geometric grid the ratio between adjacent levels is fixed: divide the upper price by the lower and take the Nth root, and you get the step-up factor per grid. For example, 2000 to 3000 split into 20 grids is roughly a 2.06% step each. Capital per grid is your total divided by the grid count. One full "buy — up one level — sell" round trip earns roughly capital per grid × (per-grid gain − two fees). If the per-grid gain doesn't even cover both fees, that grid loses money — which is exactly the trap when you cram in too many grids on too narrow a range.
Using the number to decide
Look at "net profit per grid" next to the effort and the capital it ties up: if a grid earns a few cents but locks your money in the range for weeks, plain DCA may be the easier call; if the profit per grid is respectable and the range covers the swing you actually expect, a grid earns its keep. Enter the fee rate your account really pays — the maker rate and whether you've turned on the BNB discount make a real difference. See how Binance fees work.
Reference: Binance Help Center (spot grid trading). Rates and features follow whatever Binance's own page shows at the time.