You send
Bitcoin BTC
Bitcoin is the first and largest cryptocurrency, launched in 2009 by the pseudonymous Satoshi Nakamoto. It runs on a proof-of-work blockchain with a hard cap of 21 million coins.
- Network
- Bitcoin
- Address
- Starts with bc1, 1 or 3
Swap
live ratesYou get
No account · No email · Non-custodial · All fees included
BTC → USDTMadrid
Swap Bitcoin to Tether in Madrid, Spain without KYC
In shortTo swap BTC to USDT in Madrid, enter the amount, paste your USDT address and send your BTC to the one-time deposit address. AltoSwap asks for no account, email or identity documents and pays straight to your wallet. Spanish National Securities Market Commission (CNMV) licenses crypto service providers in Madrid. AltoSwap holds no licence in Spain.
Indicative rate1 BTC ≈ 66,368.9 USDTfrom 6 no-KYC offers · updated
- No KYC by default
- No account
- Fixed or floating
- Non-custodial
- CNMV
Rates come from live exchange quotes and refresh automatically. Page content reviewed by the AltoSwap team on . How we produce and check these pages.
Live BTC to USDT network stats
Readings from the last check of this pair, each with its time. They move through the day; the calculator gives the live quote for your exact amount.
- Indicative rate
- 1 BTC ≈ 66,368.9 USDTat 2026-11-13 16:58 UTC
- Inverse rate
- 1 USDT ≈ 0.0000150673 BTCat 2026-11-13 16:58 UTC
- No-KYC offers compared
- 6for 0.005 BTC
- Estimated swap time
- about 10 minthe route's own estimate
How BTC to USDT is routed right now
At the last check, 6 no-KYC offers were available for BTC to USDT, all from A-rated exchanges. A-rated means no identity check.
BTC to USDT can also be swapped with no exchange in between, through a decentralised liquidity network. AltoSwap uses that route when it is available for your amount and pays within 1% of the best rate found.
You pay your wallet's own network fee to send BTC on Bitcoin. The network fee for paying out USDT on Tron is already included in the rate.
The live no-KYC swap index has these readings for every pair it covers, with files to download.
Bitcoin to Tether in Madrid: what applies
How AltoSwap handles this swap, next to the local money and the authority that oversees crypto services in Madrid.
| AltoSwap | Madrid · Spain | |
|---|---|---|
| Local money | Crypto to crypto only: no bank, card or cash payments | euro (EUR) |
| Crypto rules | Holds no licence in Spain | Spanish National Securities Market Commission (CNMV) |
| Identity checks | None: no account, email or documents | Depends on the service you use |
Local facts checked on against CNMV - MiCA: New regulation for crypto-assets. Rules change; this is not legal advice.
Swapping Bitcoin to Tether in Madrid
Spanish National Securities Market Commission (CNMV) licenses crypto service providers in Madrid. Its own site has its current rules. This page is not legal advice.
AltoSwap never holds your funds: you send BTC to a one-time deposit address and the USDT is paid straight to the wallet you provide. There is no account, no email and no identity check at any step.
Local facts
- Crypto authority
- Spanish National Securities Market Commission (CNMV)
- What it does
- Spanish National Securities Market Commission (CNMV) licenses crypto service providers in Madrid.
- Local currency
- euro (EUR)
Swap Bitcoin to Tether in other cities
The same pair in other cities, and more pairs in Madrid.
BTC to USDT at a glance
Swapping into USDT moves value into a dollar-pegged asset without leaving crypto. It is the no-account way to lock in the current BTC price: no order book, no verification, and the USDT lands in a wallet you control.
Your USDT is paid on Tron. Use an address that starts with T and is 34 characters long.
BTC to USDT conversion table
| You send | You get (estimate) |
|---|---|
| 0.001 BTC | ≈ 66.3689 USDT |
| 0.0025 BTC | ≈ 165.922 USDT |
| 0.005 BTC | ≈ 331.845 USDT |
| 0.01 BTC | ≈ 663.689 USDT |
| 0.025 BTC | ≈ 1,659.22 USDT |
| 0.05 BTC | ≈ 3,318.45 USDT |
Estimates from the indicative rate above. The live quote for your exact amount is in the calculator.
Pair details
- You send
- Bitcoin (BTC) on Bitcoin
- You receive
- Tether (USDT) on Tron
- KYC
- None by AltoSwap. Routed through A-rated (no-KYC) exchanges by default
- Account
- Not required. No sign-up, no email
- Indicative rate
- 1 BTC ≈ 66,368.9 USDT
- Minimum amount
- About 0.000064 BTC
- Maximum amount
- About 20 BTC
- Rate types
- Floating and fixed
- BTC deposit confirmation
- About 10-30 minutes (1-2 confirmations)
- Memo / tag
- Not used for this pair's payout
- Custody
- Non-custodial: wallet → exchange → your wallet
How to swap BTC to USDT
Four steps, with no account at any of them. Most of the wait is your BTC deposit confirming on Bitcoin.
- 1
Enter the BTC amount
Type how much BTC you want to swap (minimum about 0.000064 BTC). The USDT you will receive updates live.
- 2
Check the quote
A top no-KYC rate is already chosen for you. The form shows what you receive, how long it usually takes and the KYC rating of the route.
- 3
Add your USDT address
Paste the Tron address where you want to be paid. A refund address for your BTC is optional but recommended.
- 4
Send BTC, receive USDT
Send the exact amount to the deposit address on Bitcoin. After it confirms (about 10-30 minutes (1-2 confirmations)), the USDT is sent to your address.
About Bitcoin and Tether
Check the network and the address format on both sides before you send. A swap can only pay the address it was given.
You receive
Tether USDT
Tether (USDT) is the largest US-dollar stablecoin by market capitalisation. It is issued on many blockchains, so the network you pick must match the network your wallet or exchange expects.
- Network
- Tron
- Address
- Starts with T and is 34 characters long
Need a different network? BTC (Lightning) to USDT · BTC to USDT (ERC-20) · BTC to USDT (BEP-20) · BTC to USDT (Solana) · BTC to USDT (TON) · BTC to USDT (Polygon) · BTC to USDT (Arbitrum)
Ways to swap BTC to USDT, compared
The same swap can be done four ways. This is how they differ on privacy, custody and price.
| AltoSwap | KYC exchange | DEX | Single instant exchange | |
|---|---|---|---|---|
| Account needed | No | Yes, with email and password | No, wallet connection | No |
| Identity documents | None; no-KYC exchanges by default | ID and selfie before trading | None | Depends on that one exchange |
| Who holds your coins | You, apart from the minutes of the swap | The exchange, in your balance | You | You, apart from the minutes of the swap |
| Native BTC and USDT | Yes | Yes | Mostly wrapped or bridged tokens | Yes |
| Rate you get | 20+ exchanges and swap networks, compared live | That exchange's order book | That pool's liquidity | One exchange's quote |
| Time for BTC to USDT | Minutes | Hours to days, including sign-up | Minutes | Minutes |
| Buy with a bank card | No, crypto to crypto only | Yes | No | Usually no |
Guides for BTC to USDT
Short answers to the questions people ask before and after this swap. All of them are on the Guides page.
- How to swap Bitcoin to USDT without an accountStep by step: converting BTC to Tether with no registration, choosing the USDT network you will actually use, and fixing the amount if you need to.
- USDT networks compared: TRC-20, ERC-20, BEP-20, Solana and TONHow to choose the right network when sending or receiving USDT, how the main networks differ in fees and speed, and how to convert USDT between networks.
- What happens if you send less than the swap amountWhat a swap does with a deposit that arrives short, why it usually happens, and how you get your coins back or finish the swap.
- How long does a crypto swap take?Typical swap times by network, the four stages every swap goes through, and what makes one slower than usual.
Bitcoin to Tether in Madrid: questions and answers
Who oversees crypto services in Madrid?
Spanish National Securities Market Commission (CNMV) licenses crypto service providers in Madrid. Its own site has its current rules. This page is not legal advice.
Is AltoSwap licensed in Spain?
No. AltoSwap holds no licence in Spain. It is a non-custodial aggregator: it never holds your coins, and each swap is carried out by the exchange or network on the route.
Can I pay in euro on AltoSwap?
No. AltoSwap swaps crypto for crypto only. Buy your BTC first, then swap it here.
Does AltoSwap ask for identity documents?
No. AltoSwap asks for no account, email or documents, and by default routes through exchanges rated A for KYC, which do not ask for them either.
How do I swap BTC to USDT without KYC?
Enter the BTC amount on this page, paste your USDT address and send your BTC to the deposit address shown. AltoSwap has no accounts and asks for no identity documents, and it routes your swap through exchanges rated A for KYC, meaning providers that do not run identity checks. The USDT is paid directly to your wallet.
What is the BTC to USDT exchange rate?
At the last update, 1 BTC ≈ 66,368.9 USDT (from 6 no-KYC offers compared for 0.005 BTC). Rates move with the market every few seconds, so use the calculator at the top of the page for the live rate on your exact amount.
What are the minimum and maximum for BTC to USDT?
The minimum is about 0.000064 BTC and the maximum about 20 BTC. Limits vary slightly between exchanges and follow market prices; the form tells you immediately if your amount is outside the range.
How long does a BTC to USDT swap take?
Usually around 10 min. Most of that is waiting for your BTC deposit to confirm on Bitcoin, which takes about 10-30 minutes (1-2 confirmations). There is no verification step, so nothing else adds to the wait.
Is swapping BTC to USDT anonymous?
AltoSwap does not know who you are (no account, no email, no identity checks) and the default route uses no-KYC exchanges. Both Bitcoin and Tron are public ledgers, though, so the transactions themselves are visible on-chain. For on-chain privacy, swap into a privacy coin such as Monero.
Which USDT address should I use?
Your USDT is paid on Tron. Use an address that starts with T and is 34 characters long. Always use an address in a wallet you control and double-check the first and last characters before sending.
What fees are included in the BTC to USDT rate?
Everything. The exchange's spread, the Tron network fee for the payout and any service commission are already inside the quoted rate, so the amount shown is what you receive: exactly on a fixed rate, approximately on a floating rate. You only pay your own Bitcoin network fee to send the deposit.
Can I swap USDT back to BTC?
Yes. The reverse direction, USDT to BTC, works the same way and has its own page and live rate on AltoSwap. Each direction is quoted independently, so the two rates are not exact mirrors of each other.
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