Convert GMACon Optimism to B
Swap Gemach (GMAC) on Optimism to BUILDon (B) at the best cross-chain rate. SwitchFi routes your GMAC → B exchange across the top DEXs and bridges and settles straight from your wallet — non-custodial, no account, no sign-up.
GMAC to B market data
| Metric | GMAC · Optimism | B |
|---|---|---|
| Price | $0.0003203 | $0.1507 |
| Market cap | $160,138 | $150.70M |
| 24h volume | $335 | $3.44M |
| 24h change | +0.93% | -1.59% |
| 7d change | -0.08% | -35.67% |
| 24h high / low | $0.0003208 / $0.0003107 | $0.1616 / $0.1492 |
| All-time high | $0.01029 | $0.7635 |
| Market cap rank | #4639 | #201 |
What is the GMAC to B exchange rate?
At the current market price, 1 GMAC ≈ 0.00212523 B, and 1 B ≈ 470.5383 GMAC. The rate moves with the market; the exact amount you receive is quoted from live liquidity in your wallet before you sign.
In size terms Gemach is the junior asset: it is valued at $160,138 against BUILDon's $150.70M, a gap of about 941×. On the overall leaderboard they sit at #4639 and #201 respectively. The last 24 hours put GMAC at +0.93% against -1.59% for B — the GMAC/B rate has moved in GMAC's favour. Zooming out to a week, GMAC has moved -0.08% while B has moved -35.67%. With $335 and $3.44M in respective daily volume, neither side of a GMAC→B swap struggles for depth. GMAC currently trades 96.9% below its all-time high, while B sits 80.3% under its own peak.
GMAC to B converter & price calculator
Indicative, based on current market prices. Get a live quote in the swap.
GMAC / B conversion tables
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Live quote, net of DEX/bridge/gas fees. The final amount is confirmed in your wallet at execution.
Indicative estimate — the exact amount is confirmed in your wallet at execution.
About Gemach and BUILDon
With a total market value of $160,138, Gemach (GMAC) sits at #4639 among all cryptocurrencies. The price sits 96.9% under the record high of $0.01029. Of a maximum supply of 500.00M GMAC, 500.00M GMAC (100%) is already in circulation. Over the last 7 days GMAC is -0.08%, and +15.16% across 30 days. Its 24-hour trading volume is $335.
BUILDon (B) ranks #201 by market capitalisation at $150.70M. Compared with its $0.7635 all-time peak, it currently trades 80.3% lower. Of a maximum supply of 1.00B B, 1.00B B (100%) is already in circulation. Recent performance reads -35.67% over 7 days and -45.88% over the past month for B. Around $3.44M of B changes hands every 24 hours.
How to convert GMAC to B
- 1 Enter the amount of GMAC on Optimism you want to convert — the swap widget on this page is prefilled with the GMAC → B pair.
- 2 Connect a compatible wallet: MetaMask, OKX, Trust Wallet, TokenPocket, TronLink, UniSat, Phantom and others.
- 3 Review the quoted route — the estimated and minimum amount of B you will receive, plus network, DEX and bridge fees, are all shown before you sign.
- 4 Confirm the transaction in your wallet and track the swap on the My transactions page until the funds arrive.
Other options to exchange B
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GMAC to B FAQ
What is the GMAC to B exchange rate?
1 GMAC is worth roughly 0.00212523 B at the moment (inverted: 1 B ≈ 470.5383 GMAC). This moves with the market; your wallet shows the exact executable amount before signing.
How to swap, exchange or convert GMAC to B on SwitchFi?
Enter the amount of GMAC you want to pay, connect your wallet, review the quote and confirm. SwitchFi routes the swap across DEXs and bridges to the best GMAC→B path — non-custodial, straight from your wallet.
Is the GMAC to B swap instant?
Same-chain swaps settle in seconds; cross-chain routes typically take a few minutes while the bridge confirms on both sides. You can track live status until the funds land.
Are there fees to convert GMAC to B?
All costs — gas, DEX fees and any bridge fee — are included in the quote before you sign, along with the guaranteed minimum you'll receive. There are no account or custody charges.
Do I need an account to exchange GMAC for B?
No account is needed. You connect a wallet, approve the swap and receive the funds directly — there is no registration or KYC step for on-chain swaps.
Market data by CoinGecko, cached server-side. Prices are informational — the exact swap rate is quoted at execution time.