Bitcoin calculator: sats ⇄ BTC ⇄ dollars, euros, rubles, yuan
Type an amount in any row: sats, BTC, mBTC or one of 8 currencies. Uses the live bitcoin price and official ECB and Bank of Russia rates. Plus quick amounts, what $100 bought on any day since 2010, and Lightning channel sizes in money.
🌱 Sats in plain words
- A bitcoin divides into 100 million parts called satoshis (sats). You never have to buy a whole coin.
- Prices of everyday things and Lightning payments are usually quoted in sats.
- The bitcoin price moves every second; fiat exchange rates change once a day. The time and source of each number is shown below.
Converter
Source: BTC/USD Coinbase (2026-10-22T19:30:47.000Z) · currency rates: ECB and Bank of Russia, see “Rates used and sources” below · amounts computed by 21btc
Quick amounts: sats to BTC, BTC to sats and what they are worth
Sats to BTC and BTC to sats: 1 sat = 0.00000001 BTC, and 1 BTC = 100,000,000 sats. Pick an amount below to see it in sats, BTC and money at the live price.
- 1,000 sats0.00001 BTC$0.8142€0.7267₽66.05CN¥5.43
- 10,000 sats0.0001 BTC$8.14€7.27₽660.55CN¥54.34
- 100,000 sats0.001 BTC$81.42€72.67₽6,605.47CN¥543.44
- 1,000,000 sats0.01 BTC$814.23€726.67₽66,054.74CN¥5,434.41
- 5,000,000 sats0.05 BTC$4,071.15€3,633.33₽330,273.71CN¥27,172.05
- 1 BTC100,000,000 sats$81,422.91€72,666.69₽6,605,474.29CN¥543,440.93
Source: BTC/USD Coinbase (2026-10-22T19:30:47.000Z) · currency rates: ECB and Bank of Russia, see “Rates used and sources” below · amounts computed by 21btc
What $X of bitcoin bought on a date, and what it's worth now
Daily USD close from blockchain.info market-price (from 18 Aug 2010). In dollars only: historical exchange rates for other currencies are not applied. Past performance says nothing about the future; not investment advice. · last day 22 Oct 2026
Lightning channel size helper
| Capacity, sats | BTC | USD | reserve ~1% |
|---|---|---|---|
| 1,000,000 | 0.01 | $814.23 | $8.14 |
| 2,000,000 | 0.02 | $1,628.46 | $16.28 |
| 3,000,000 | 0.03 | $2,442.69 | $24.43 |
| 4,000,000 | 0.04 | $3,256.92 | $32.57 |
| 5,000,000 | 0.05 | $4,071.15 | $40.71 |
| 2,500,000 | 0.025 | $2,035.57 | $20.36 |
Source: BTC/USD Coinbase (2026-10-22T19:30:47.000Z) · currency rates: ECB and Bank of Russia, see “Rates used and sources” below · amounts computed by 21btc
- Channel capacity is locked on-chain while the channel is open; you can only send what is on your side.
- Each side usually keeps a reserve of about 1% of capacity that it cannot spend (BOLT 2 recommendation).
- 16,777,215 sats was the original per-channel cap; larger (“wumbo”) channels need both nodes to support option_support_large_channel.
Rates used and sources
| Currency | per 1 USD | 1 BTC | Source | Rate date |
|---|---|---|---|---|
| USD | 1 | $81,422.91 | Coinbase (BTC/USD spot) | 22 Oct, 20:30 London |
| EUR Euro | 0.8925 | €72,666.69 | ECB reference rate (Frankfurter) | 22 Oct 2026 |
| RUB Russian ruble | 81.1255 | ₽6,605,474.29 | Bank of Russia official rate | 23 Oct 2026 |
| CNY Chinese yuan | 6.6743 | CN¥543,440.93 | ECB reference rate (Frankfurter) | 22 Oct 2026 |
| GBP British pound | 0.7476 | £60,872.58 | ECB reference rate (Frankfurter) | 22 Oct 2026 |
| AED UAE dirham | 3.6725 | 299,025.64 AED | ExchangeRate-API (open.er-api.com) | 22 Oct, 01:02 London |
| TRY Turkish lira | 49.628 | ₺4,040,856.18 | ECB reference rate (Frankfurter) | 22 Oct 2026 |
| JPY Japanese yen | 157.05 | JP¥12,787,468 | ECB reference rate (Frankfurter) | 22 Oct 2026 |
- BTC/USD: live spot from Coinbase (Kraken, Bitstamp as fallbacks), refreshed in your browser every 45 seconds.
- EUR, GBP, CNY, JPY, TRY: ECB euro reference rates (published around 16:00 CET on working days), crossed to USD by Frankfurter.
- RUB: official Bank of Russia USD rate (ECB stopped quoting the ruble in March 2022), via the cbr-xml-daily.ru mirror of cbr.ru.
- AED and fallback for all: ExchangeRate-API open access (daily). Every rate is cross-checked against it; we warn on a gap above 3%.
- Rates are refreshed on our server every hour; if a source fails, the last good rate stays with a mark.
FX file updated 22 Oct, 19:31 London · Frankfurter · cbr-xml-daily.ru · open.er-api.com
FAQ
- How many sats are in 1 bitcoin?
- 1 bitcoin = 100,000,000 satoshis (sats). 1 mBTC = 100,000 sats.
- Where do the fiat rates come from?
- BTC/USD is the live spot price (Coinbase, falling back to Kraken and Bitstamp). EUR, GBP, CNY, JPY and TRY use ECB reference rates, RUB the official Bank of Russia rate, AED ExchangeRate-API.
- Why can the ruble price differ from Russian exchanges?
- We cross the global BTC/USD price with the official Bank of Russia USD rate. Local P2P and exchange prices in rubles can carry a premium or discount.