Swap Tether (USDT Arbitrum) for USD Coin (USDC BASE)
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 18:33
- Payout network
- BASE
- 24 hours
- −0.01%
You get
USDC BASE
Start the order
USDC BASE
The figure is indicative; the exact amount is locked in the order.
One USDT Arbitrum buys 0.9995 USDC BASE right now; the other way round, 1 USDC BASE is 1.0005 USDT Arbitrum. Market over 24 hours: USDT Arbitrum against USDC BASE minus 0.01%. The week added minus 0.02%.
The weekly corridor ran from 0.999575 to 0.999993 USDC BASE, a spread of 0.04%.
The payout leaves in the BASE network, so the receiving address has to belong to that network. By market cap Tether sits 3th ($183.29 B) and USD Coin 6th ($73.56 B). Daily moves of USDT and USDC over 90 days line up at 0.16 (they travel apart).
Who takes the USDT Arbitrum → USDC BASE route
- A road both waysThe USDC BASE → USDT Arbitrum direction is open too, so going back into USDT takes the same route.
USDT Arbitrum → USDC BASE rate and amounts
1 USDT Arbitrum = 0.9995 USDC BASE
1 USDC BASE = 1.0005 USDT Arbitrum
Send USDT Arbitrum — receive USDC BASE
| USDT Arbitrum | USDC BASE |
|---|---|
| 20 | 19.99 |
| 100 | 99.95 |
| 500 | 499.7501 |
| 5,000 | 4,997.5 |
| 20,000 | 19,990 |
| 100,000 | 99,950.02 |
Need USDC BASE — send this much USDT Arbitrum
| USDC BASE | USDT Arbitrum |
|---|---|
| 20 | 20.01 |
| 100 | 100.05 |
| 500 | 500.25 |
| 5,000 | 5,002.5 |
| 20,000 | 20,010 |
| 100,000 | 100,050 |
Payout network for USDC
The same USDC goes out in several networks. Rates and lower limits differ, and the fee is charged by the network itself.
| Network | Per USDT Arbitrum | From | Network fee | Speed |
|---|---|---|---|---|
| Polygon | 0.997595 | 100 USDT Arbitrum | ≈ $0.0017 | fast |
| Solana | 1.0012 | 10,500 USDT Arbitrum | ≈ $0.0005 | fast |
| Ethereum (ERC20) | 1.0012 | 100 USDT Arbitrum | ≈ $0.082 | medium |
| Arbitrum One | 0.9995 | — | ≈ $0.0033 | fast |
| BASE open now | 0.9995 | — | — | — |
| BNB Smart Chain (BEP20) | 0.9995 | — | ≈ $0.0024 | fast |
| Avalanche C-Chain | 0.9995 | — | ≈ < $0.0001 | fast |
| NEAR | 0.9995 | — | — | — |
| Optimism | 0.9995 | — | ≈ $0.00018 | fast |
| XLM | 0.9995 | — | — | — |
How the USDT Arbitrum → USDC BASE order runs
- Work out the amount in the calculator and press the exchange button.
- Enter a USDC address in BASE and a way to reach you.
- Send USDT Arbitrum in Arbitrum One for exactly the amount stated in the order.
- Once the network confirms your transfer, USD Coin leaves for your address. The order page tracks every step.
Check this before sending USDT Arbitrum
- The address network is BASE. Sending through another network usually means losing the transfer.
- 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 USDT Arbitrum to USDC BASE rate has been
high 0.999993 USDC BASElow 0.999575 USDC BASE
Sep 10, 2026 18:38Sep 17, 2026 18:38
high 1.0002 USDC BASElow 0.999577 USDC BASE
Aug 18, 2026 03:00Sep 17, 2026 03:00
high 1.0002 USDC BASElow 0.999327 USDC BASE
Jun 19, 2026 03:00Sep 17, 2026 03:00
high 1.0017 USDC BASElow 0.996801 USDC BASE
Sep 18, 2025 03:00Sep 17, 2026 03:00
- 24 hours
- −0.01%
- Week
- −0.02%
- Weekly high
- 0.999993 USDC BASE
- Weekly low
- 0.999575 USDC BASE
- Spread
- 0.04%
Market data from CoinGecko as of Sep 17, 2026 15:54; the exchange rate is calculated separately and differs. Where these numbers come from
How far USDT Arbitrum/USDC BASE travelled, by period
| Period | High | Low | Middle | Net move |
|---|---|---|---|---|
| 24 hours | 0.99975 | 0.999575 | 0.999641 | −0.01% |
| Week | 0.999993 | 0.999575 | 0.999831 | −0.02% |
| Month | 1.0002 | 0.999577 | 0.999912 | 0% |
| Quarter | 1.0002 | 0.999327 | 0.999705 | 0% |
Figures are in USDC BASE per unit sent, from market data.
Daily USDT Arbitrum → USDC BASE rate
| Day | Close | Against the day before |
|---|---|---|
| Sep 17, 2026 | 0.999591 USDC BASE | −0.01% |
| Sep 16, 2026 | 0.999723 USDC BASE | −0.03% |
| Sep 15, 2026 | 0.999985 USDC BASE | +0.01% |
| Sep 14, 2026 | 0.999848 USDC BASE | −0.01% |
| Sep 13, 2026 | 0.999949 USDC BASE | 0% |
| Sep 12, 2026 | 0.999966 USDC BASE | +0.02% |
| Sep 11, 2026 | 0.999808 USDC BASE | 0% |
The numbers on USDT and USDC
Tether USDT- Price
- $0.999175
- 24 hours
- −0.02%
- Week
- 0%
- Market cap
- $183.29 B
- 24-hour turnover
- $60.77 B
- Rank by cap
- #3
- In circulation
- 183.44 B USDT
- Record price
- $1.32
USD Coin USDC- Price
- $0.999571
- 24 hours
- −0.01%
- Week
- 0%
- Market cap
- $73.56 B
- 24-hour turnover
- $18.85 B
- Rank by cap
- #6
- In circulation
- 73.59 B USDC
- Record price
- $1.04
Source: CoinGecko, Sep 17, 2026 15:54.
Tether against USD Coin
| Tether (USDT) | USD Coin (USDC) | |
|---|---|---|
| Ticker | USDT | USDC |
| Type | token | token |
| Network | Arbitrum One | BASE |
| Fees are paid in | ETH | — |
| Launched | 2014 | 2018 |
| Built by | Tether Limited | Circle |
| Supply cap | no cap | no cap |
| In circulation | 183.44 B USDT | 73.59 B USDC |
| Market cap | $183.29 B | $73.56 B |
| Rank by cap | #3 | #6 |
Daily moves of USDT and USDC over 90 days line up at 0.16 — they travel apart.
Common questions: USDT Arbitrum → USDC BASE
What rate does USDT Arbitrum to USDC BASE run at?
As of Sep 17, 2026 18:33 it is 1 USDT Arbitrum = 0.9995 USDC BASE. The figure recalculates on its own, and the calculator always shows the fresh one. In dollars that is around $0.999071.
What else is taken on top of the rate?
The payout is already calculated at the rate in the calculator. On top of it you only pay the network fee for sending USDT Arbitrum, and that one goes to the blockchain, not to us.
How long does USDT Arbitrum to USDC BASE take?
The clock starts with confirmations: the order goes into work once Arbitrum One confirms your transfer. After that it comes down to how busy the network is.
Which network will USDC BASE arrive in?
The payout leaves in BASE. Make sure the receiving wallet works with that network.
Where is receiving USDC cheaper?
The cheapest is usually USDC Polygon, USDC SOL, USDC Arbitrum, USDC BEP20, USDC AVAX C, USDC Optimism. Still, the network is chosen by what the recipient supports, not by the fee.
What if the rate moves while I am paying?
The rate is pinned to the order and does not move while the order is alive. It can be recalculated if the payment arrives late or for a different amount — so send the exact sum, and send it promptly.
What did the USDT Arbitrum to USDC BASE rate do this month?
The month came in at a move of 0%. Low 0.999577, high 1.0002, middle 0.999912 USDC BASE per USDT Arbitrum.
Can I go back, USDC BASE to USDT Arbitrum?
Yes, the reverse direction is open: 1 USDC BASE = 1.0007 USDT Arbitrum. The link sits right under the calculator.
Worth reading
Where else this can go
The other way round
Send USDT Arbitrum, receive something else
USDT Arbitrum → USDS0.9997- USDT Arbitrum → USDT BEP201.0001
- USDT Arbitrum → USDT AVAX C1.0001
- USDT Arbitrum → USDT ERC200.9999
- USDT Arbitrum → USDT NEAR1.0001
- USDT Arbitrum → USDT OMNI1.0001
- USDT Arbitrum → USDT Optimism1.0001
- USDT Arbitrum → USDT Polygon1.0001
Receive USDC BASE, send something else
- USDT BEP20 → USDC BASE0.9995
- USDT AVAX C → USDC BASE0.9995
- USDT ERC20 → USDC BASE0.9995
- USDT NEAR → USDC BASE0.9995
- USDT OMNI → USDC BASE0.9995
- USDT Optimism → USDC BASE0.9995
- USDT Polygon → USDC BASE0.9995
- USDT SOL → USDC BASE0.9995