What a GMGN Trade Actually Costs: All-In Fee Calculator

The Headline Fee, and What It Leaves Out

GMGN's fee documentation, read 18 August 2026, states that it "only charges a 1% handling fee for a single transaction, and there are no additional charges," with a worked example of a 1 SOL trade paying 0.01 SOL. Charged on the buy and again on the sell, so a round trip is 2% of the amount traded.

Two things sit outside that, and the same page names both.

The on-chain fee. GMGN gives the formula directly: on-chain fee equals priority fee plus tip fee plus gas. It also states that priority and tip fees "are additional fees paid to speed up transaction processing, used to bribe nodes to prioritize your tx, and are not collected by GMGN." The priority fee goes to validators, the tip to private nodes. Both have a documented range of 0.0001 SOL minimum to 2 SOL maximum, and both are set by you. Because GMGN never receives that money, a mis-set priority fee cannot be refunded by anyone.

Slippage. Not a fee at all, which is why the calculator below keeps it in its own row. It is a tolerance you authorize before the trade. GMGN recommends auto slippage for manual trades, 30 to 35% for automated buys, sells and limit orders, and 50% or more for new or hot tokens. Setting 50% does not cost 50%; it permits a fill half a level below the quote, and on a thin pool that permission gets used.

The reason this matters more here than on a normal exchange is arithmetic rather than pricing. The 1% scales with your position. The on-chain fee does not.

What Each Input Means

Chain. GMGN's handling fee is the same 1% on Solana, BSC, Ethereum, Base, Tron and Blast, so the platform side does not vary by chain. The chain side does, and this is where most calculators start inventing numbers. GMGN publishes its recommended on-chain amounts in SOL only. It documents the formula for every chain and names figures for none of them outside Solana, so the five non-Solana chains open with an empty on-chain field and a note telling you to enter what your own wallet quotes. An unsourced gas figure would be worse than an empty box.

Trade size. In the chain's native token, because that is the unit GMGN's own documentation and worked example use. This is the input that moves the answer most, and not in the direction people expect: the percentage cost falls as size rises, because the fixed part is being divided by a bigger number.

On-chain fee per leg. Priority fee plus tip plus gas for one transaction. GMGN's documented Solana guidance is 0.002 to 0.005 SOL when speed does not matter, and 0.006 SOL or more for auto buy, auto sell and limit orders, which is the default here because automated orders are where this cost compounds. Anti-MEV is worth knowing about while you are in this field: GMGN states it requires a priority fee of at least 0.002 SOL to enable at all, so protection has a floor.

Slippage tolerance. Your authorized worst fill, in percent. The calculator prints it as a ceiling rather than folding it into the headline, because presenting a permission as a price is the single most common way these numbers get misreported.

Round trip. On by default. GMGN charges on the buy and again on the sell, so a position you intend to close costs two of everything. Turn it off if you only want the entry.

Worked Examples

Static, so this section works with JavaScript off and can be quoted whole. Every row is the same two documented inputs multiplied out: GMGN's flat 1% per transaction and its own recommended Solana on-chain bands. Round trips, so 2% advertised in every row, and slippage is excluded because it is a ceiling rather than a charge.

The 0.1 SOL rows are the ones worth sitting with. At GMGN's own recommended automated-order setting, a tenth of a SOL is charged seven times the advertised rate, and the token has to move 14% before the position is flat. Most memecoin round trips do not clear 14%.

Note what is not in this table: a column per chain. GMGN publishes these bands in SOL and names no equivalent for BSC, Ethereum, Base, Tron or Blast, so filling five more columns would mean sourcing them from somewhere other than GMGN and presenting the result as GMGN's guidance. The calculator handles those chains by asking you instead.

Why the Gap Is Larger on Some Chains Than Others

The mechanism is the same everywhere and it has nothing to do with GMGN's rate, which is 1% on all six chains.

The gap between advertised and charged is the fixed on-chain cost divided by your trade size. So it widens whenever the chain's per-transaction cost is high relative to what people trade there, and it narrows whenever the opposite is true. A chain where a swap costs a few cents and people trade in hundreds of dollars produces a gap you will never notice. A chain where a swap costs several dollars and people are placing $20 punts produces one that dominates the trade.

That is why the honest per-chain answer is not a table of ours but a number from your own wallet, taken at the moment you trade. Network conditions move the fixed cost within a single day, and GMGN itself says to increase the priority fee manually during busy periods, which moves it again.

One GMGN-specific effect worth naming: its documentation recommends a higher on-chain fee for automated orders than for manual ones, 0.006 SOL or more against 0.002 to 0.005. So copy trading, limit orders and sniping the trenches all sit at the expensive end of that band by design, and they are also the features that place the most trades. Frequency multiplies a fixed cost.

Methodology and Sources

Every rate and band in the calculator and in the worked-examples table is read from GMGN's own Fees and Settings documentation on 18 August 2026: the flat 1% handling fee per transaction with no additional charges, the 1 SOL worked example paying 0.01 SOL, the on-chain formula of priority fee plus tip fee plus gas, the statement that priority and tip fees are not collected by GMGN, the 0.0001 SOL minimum and 2 SOL maximum on each, the recommended 0.002 to 0.005 SOL total for unhurried trades and 0.006 SOL or more for automated orders, the 0.002 SOL priority-fee floor for Anti-MEV, and the slippage guidance of 30 to 35% for automated orders and 50% or more for new tokens.

Everything else on this page is arithmetic over those inputs, and it is ours rather than GMGN's. The percentages in the worked-examples table are the 1% and the on-chain band multiplied out at three trade sizes; no other input goes into them. Where GMGN publishes no figure, this page publishes none either: the five non-Solana chains carry the formula and an empty field rather than a number sourced from somewhere else.

Rates change and GMGN ships quickly. Confirm the current values in the documentation and in the app before you size a position.

Nothing on this page is financial, investment, legal or tax advice, and no figure here is a prediction of what any particular trade will cost. It is a description of a published fee schedule and the arithmetic that follows from it. The full walkthrough of the same schedule is in GMGN fees explained, how it compares with the rest of the sector is in the terminal fee and market-share snapshot, and if you have not funded a wallet yet, start at connect Telegram and fund your GMGN wallet.