Swap USD Coin (USDC BASE) for Tether (USDT ERC20)
The calculator does the maths at the live rate, the page lists the limits and the timing. Your rate is locked the moment the order is created.
Rate as of Sep 17, 2026 10:38
- Orders from
- 200 USDC BASE ≈ $199.92
- Payout network
- Ethereum (ERC20)
- 24 hours
- +0.01%
The figure is indicative; the exact amount is locked in the order.
Today USDC BASE goes for 1.0008 USDT ERC20, and USDT ERC20 goes for 0.999201 USDC BASE. Market over 24 hours: USDC BASE against USDT ERC20 plus 0.01%. The week added plus 0.02%.
The weekly corridor ran from 1 to 1.0005 USDT ERC20, a spread of 0.05%. A single order takes 200 to 10,000,000 USDC BASE. In dollars that is roughly $199.92.
The payout leaves in the Ethereum (ERC20) network, so the receiving address has to belong to that network. By market cap USD Coin sits 6th ($73.69 B) and Tether 3th ($183.29 B). Daily moves of USDC and USDT over 90 days line up at 0.16 (they travel apart).
Who takes the USDC BASE → USDT ERC20 route
- A road both waysThe USDT ERC20 → USDC BASE direction is open too, so going back into USDC takes the same route.
USDC BASE → USDT ERC20 rate and amounts
Send USDC BASE — receive USDT ERC20
| USDC BASE | USDT ERC20 |
|---|---|
| 200 | 200.16 |
| 1,000 | 1,000.8 |
| 2,000 | 2,001.6 |
| 10,000 | 10,008 |
| 20,000 | 20,016 |
| 100,000 | 100,080 |
Need USDT ERC20 — send this much USDC BASE
| USDT ERC20 | USDC BASE |
|---|---|
| 500 | 499.6003 |
| 1,000 | 999.2006 |
| 5,000 | 4,996 |
| 10,000 | 9,992.01 |
| 50,000 | 49,960.03 |
| 100,000 | 99,920.06 |
Payout network for USDT
The same USDT goes out in several networks. Rates and lower limits differ, and the fee is charged by the network itself.
| Network | Per USDC BASE | From | Network fee | Speed |
|---|---|---|---|---|
| OMNI | 1.0008 | — | — | — |
| Ethereum (ERC20) open now | 1.0008 | 200 USDC BASE | ≈ $0.0089 | medium |
| TRON (TRC20) | 1.0008 | 200 USDC BASE | ≈ $2.3 | fast |
| BNB Smart Chain (BEP20) | 1.0008 | 200 USDC BASE | ≈ $0.0024 | fast |
| Solana | 1.0008 | 200 USDC BASE | ≈ $0.0005 | fast |
| Polygon | 1.0008 | 200 USDC BASE | ≈ $0.0017 | fast |
| Arbitrum One | 1.0008 | 200 USDC BASE | ≈ $0.0032 | fast |
| TON | 1.0008 | 200 USDC BASE | low | fast |
| Avalanche C-Chain | 1.0008 | — | ≈ < $0.0001 | fast |
| NEAR | 1.0008 | — | — | — |
| Optimism | 1.0008 | — | ≈ $0.00016 | fast |
How the USDC BASE → USDT ERC20 order runs
- Work out the amount in the calculator: orders start at 200 USDC BASE.
- Enter a USDT address in Ethereum (ERC20) and a way to reach you.
- Send USDC BASE in BASE for exactly the amount stated in the order.
- Once the network confirms your transfer, Tether leaves for your address. The order page tracks every step.
Check this before sending USDC BASE
- The address network is Ethereum (ERC20). Sending through another network usually means losing the transfer.
- The transfer must not be smaller than 200 USDC BASE.
- Copy the address whole, then compare the first and last characters after pasting.
- Coins go through an AML check: a flagged transfer can be held until the check is finished.
Where the USDC BASE to USDT ERC20 rate has been
- 24 hours
- +0.01%
- Week
- +0.02%
- Weekly high
- 1.0005 USDT ERC20
- Weekly low
- 1 USDT ERC20
- Spread
- 0.05%
Market data from CoinGecko as of Sep 17, 2026 08:24; the exchange rate is calculated separately and differs. Where these numbers come from
How far USDC BASE/USDT ERC20 travelled, by period
| Period | High | Low | Middle | Net move |
|---|---|---|---|---|
| 24 hours | 1.0004 | 1.0003 | 1.0003 | +0.01% |
| Week | 1.0005 | 1 | 1.0002 | +0.02% |
| Month | 1.0004 | 0.999785 | 1.0001 | 0% |
| Quarter | 1.0007 | 0.999785 | 1.0003 | 0% |
Figures are in USDT ERC20 per unit sent, from market data.
Daily USDC BASE → USDT ERC20 rate
| Day | Close | Against the day before |
|---|---|---|
| Sep 17, 2026 | 1.0004 USDT ERC20 | +0.01% |
| Sep 16, 2026 | 1.0003 USDT ERC20 | +0.03% |
| Sep 15, 2026 | 1 USDT ERC20 | −0.01% |
| Sep 14, 2026 | 1.0002 USDT ERC20 | +0.01% |
| Sep 13, 2026 | 1.0001 USDT ERC20 | 0% |
| Sep 12, 2026 | 1 USDT ERC20 | −0.02% |
| Sep 11, 2026 | 1.0002 USDT ERC20 | 0% |
The numbers on USDC and USDT
- Price
- $0.999596
- 24 hours
- −0.01%
- Week
- 0%
- Market cap
- $73.69 B
- 24-hour turnover
- $18.44 B
- Rank by cap
- #6
- In circulation
- 73.72 B USDC
- Record price
- $1.04
- Price
- $0.999181
- 24 hours
- −0.02%
- Week
- 0%
- Market cap
- $183.29 B
- 24-hour turnover
- $60.43 B
- Rank by cap
- #3
- In circulation
- 183.44 B USDT
- Record price
- $1.32
Source: CoinGecko, Sep 17, 2026 08:24.
USD Coin against Tether
| USD Coin (USDC) | Tether (USDT) | |
|---|---|---|
| Ticker | USDC | USDT |
| Type | token | token |
| Network | BASE | Ethereum (ERC20) |
| Launched | 2018 | 2014 |
| Built by | Circle | Tether Limited |
| Supply cap | no cap | no cap |
| In circulation | 73.72 B USDC | 183.44 B USDT |
| Market cap | $73.69 B | $183.29 B |
| Rank by cap | #6 | #3 |
| Fees are paid in | — | ETH |
Daily moves of USDC and USDT over 90 days line up at 0.16 — they travel apart.