Swap TON to USDT

Swap Gram (GRAM, ex-Toncoin) from your TON wallet for USDT on TON, Tron, Ethereum or BNB Chain. Non-custodial, no sign-up, no KYC.

Five years of secure cross-chain infrastructure

2021

Live Since

Live Since

2021

50+

Chains

Chains

50+

58 sec

Avg bridge time

Avg bridge time

58 sec

$10B

Total volume

Total volume

$10B

About the TON to USDT swap

  • Why swap TON to USDT. USDT is the dollar used across Telegram mini apps and TON DeFi, and USDT on Tron or BNB Chain is accepted almost everywhere else. Swapping Gram to USDT fixes the value of your coins in dollars.

  • How it works. First Gram is swapped to USDT on TON inside your TON wallet. If you want USDT on another network, Symbiosis then moves it to Tron, Ethereum or BNB Chain.

  • What you need. Gram in a TON wallet such as Tonkeeper, and a receiving address if the USDT should land outside TON.

  • Gram and Toncoin. TON’s native coin was renamed from Toncoin to Gram (GRAM) on 15 June 2026 after a community vote; balances and addresses did not change, and the network is still called TON.

More TON swaps: USDT to TON, ETH to TON, Swap TON.

Swap TON to USDT in Symbiosis PRO mode: 700 GRAM (TON) to 1,021.59 USDT (Tron)

How to swap TON to USDT

Approximate example for 7 October 2026: swapping 700 GRAM (~$1,025) on TON returns about 1,021.59 USDT on Tron, delivered in about 19 seconds. Symbiosis compares routes across DEXes and liquidity sources and picks the best one by price, fee and speed. Here is the flow:

  1. Open the swap. Go to the Symbiosis app and connect a TON wallet such as Tonkeeper. There is no sign-up and no KYC.

  2. Pick the token you send. Choose Gram on TON in the From field.

  3. Choose USDT on Tron. Set USDT as the token to receive and Tron as the destination network, and enter your address on Tron. Enter the amount: 700 GRAM (~$1,025).

  4. Check the quote. Before you sign, the app shows how much USDT you get, the fee, price impact and time. In this example: about 1,021.59 USDT, a $3.07 route fee, with 2% slippage tolerance.

  5. Sign and receive. Confirm the transaction in your wallet; USDT lands in your wallet on Tron.

Sample TON to USDT quotes

Approximate figures for 700 GRAM to USDT on 3 networks. Receive is the amount of USDT that lands in your wallet. Receive and Fee are estimated from the median cost of swaps from TON on Symbiosis between 29 August and 28 September 2026, at the Gram market price of $1.46 on 7 October 2026; the TON network fee is not included. Time is the median delivery time from TON to each network over the 90 days to 29 September 2026.

Amount

Receive

Fee + Gas

Time

700 GRAM

1,022 USDT (Tron)

$3.07

~19s

700 GRAM

1,022 USDT (Ethereum)

$2.77

~24s

700 GRAM

1,022 USDT (BNB Chain)

$2.25

~28s

Swap Gram (ex-Toncoin) to USDT on TON, Tron, Ethereum or BNB Chain, no KYC.

Bitcoin, Ethereum, BNB and USDC coins on a green background

Secure by design. Proven at scale

Doc icon

Audited in the open

No KYC, no custody, no intermediaries. Audited by Decurity, Zokyo, SlowMist, and Omniscia — 13 public audit reports across 11 protocol modules (Core, MetaRouter v3, Pool, TON Bridge v1+v2, Relayers Network, Staking, Frontend). All reports open-source on GitHub. 4+ years live on mainnet (since March 2022) with zero major security incidents. Active bug bounty program.

Doc icon

Audited in the open

No KYC, no custody, no intermediaries. Audited by Decurity, Zokyo, SlowMist, and Omniscia — 13 public audit reports across 11 protocol modules (Core, MetaRouter v3, Pool, TON Bridge v1+v2, Relayers Network, Staking, Frontend). All reports open-source on GitHub. 4+ years live on mainnet (since March 2022) with zero major security incidents. Active bug bounty program.

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Two-layer staking security

Cross-chain transactions routed via Octopools AMM (scans liquidity across DEXs and chains for minimal slippage), then signed by an MPC group via Threshold Signature Scheme (TSS) — no single party can move user funds. Two security layers: Symbiosis PoS Staking (SIS-collateralised relayer nodes) + Symbiotic restaking (additional slash-able collateral). 2/3 stake quorum for epoch changes.

Shield icon

Two-layer staking security

Cross-chain transactions routed via Octopools AMM (scans liquidity across DEXs and chains for minimal slippage), then signed by an MPC group via Threshold Signature Scheme (TSS) — no single party can move user funds. Two security layers: Symbiosis PoS Staking (SIS-collateralised relayer nodes) + Symbiotic restaking (additional slash-able collateral). 2/3 stake quorum for epoch changes.

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$8B+ across 54 chains

$8B+ total volume bridged across 5M+ transactions from 800K+ unique wallets. Supports 54 networks — more than any other cross-chain bridge (Across 35+, deBridge 30+, Allbridge 20). EVM + non-EVM in one route — Ethereum, Solana, BNB Chain, TON, Tron, Bitcoin, Arbitrum, Polygon, and 46 more. Per-transaction range: $10 to $140,000 — handles retail swaps and whale trades on the same route.

Still have questions?

Contact us and we’ll help you out.

01

How do I swap TON to USDT?

Connect Tonkeeper or another TON wallet in the Symbiosis app, choose Gram as the token to send and USDT on the network you want as the token to receive, check the quote and confirm.

02

Is Gram the same as Toncoin?

Yes. TON’s native coin was renamed from Toncoin to Gram (GRAM) on 15 June 2026 after a community vote; balances and addresses did not change, and the network is still called TON.

03

How does an on-chain swap work?

An on-chain swap stays inside the TON network: Gram turns into USDT on TON in your wallet, and only TON network fees apply.

04

How does a cross-chain swap work?

After the swap to USDT on TON, Symbiosis moves the USDT to the network you chose — Tron, Ethereum or BNB Chain — and delivers it to your address there.

05

How long does a TON to USDT swap take?

Over the 90 days to 29 September 2026, swaps from the TON network into USDT on Symbiosis took a median of 23 seconds, and 90% finished within 37 seconds.

06

Which wallets are supported?

Tonkeeper and other TON wallets for sending; for USDT on Tron, Ethereum or BNB Chain you need an address on that network, such as TronLink or MetaMask.

07

Do I need Gram for fees?

Yes, a little Gram pays the TON network fee for the transaction.

08

Do I need KYC?

No. There is no sign-up and no KYC, and Symbiosis never holds your funds.

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