Pump.fun Bonding Curve Calculator
See exactly how SOL buys move a token's price, market cap, and progress to graduation on pump.fun's bonding curve — using pump.fun's real constant‑product math. Free, instant, no wallet connection.
How pump.fun's bonding curve works
Every pump.fun token launches against a constant‑product bonding curve seeded with about 30 virtual SOL and 1.073 billion virtual tokens. The product of the two reserves stays constant: k = virtualSOL × virtualTokens. When someone buys, their SOL (minus a 1% fee) is added to the SOL reserve, the token reserve drops to keep k constant, and the price ticks up the curve for the next buyer.
The curve sells roughly 793.1 million tokens. Once about 85 SOL has been collected, the token graduates — its remaining liquidity is deposited to a DEX (Raydium/PumpSwap) and it trades like any other pair. This calculator uses those exact constants, so the numbers track what you'd see on‑chain (real launches vary slightly with fees and timing).
Why this matters
Price on the curve is driven entirely by SOL in — which is why volume and momentum are everything in a token's early life. Steady buy/sell flow keeps a token visible on DEX Screener and trending boards while organic demand builds. (That's the whole job of a volume bot like ours — see the volume guide.)
Vol Bot generates distributed buy/sell flow across many wallets — micro‑trade, wave, and random‑walk strategies — so your chart looks alive while you build.
Get Vol Bot →FAQ
What market cap does a pump.fun token graduate at?
Graduation triggers once ~85 SOL has been raised into the curve — roughly a $60–70k market cap depending on the SOL price. At that point ~793M tokens have sold and liquidity migrates to a DEX. Use the calculator above to see the exact figure at today's SOL price.
Is this calculator accurate to the real chain?
It uses pump.fun's published bonding‑curve constants (30 virtual SOL, 1.073B virtual tokens, 1% fee, ~85 SOL graduation). On‑chain results vary slightly with the exact fee schedule and the order of trades, but the price/market‑cap/graduation math matches the live curve closely.
Does buying more always raise the price?
Yes — every buy adds SOL to the reserve and removes tokens, so the price strictly increases along the curve. Selling does the reverse. The bigger your buy relative to the SOL already in the curve, the bigger your price impact (shown above).
Disclaimer: This is a free educational tool, not financial advice. Crypto is volatile and high‑risk; you can lose everything. Figures are estimates of pump.fun's bonding‑curve mechanics and do not predict price. Do your own research and follow the laws of your jurisdiction.