Satoshi to Bitcoin converter
Switch between satoshis and bitcoin without moving decimals by hand: 100,000,000 sats are exactly 1 BTC. Add the price of one bitcoin that you choose, not a live quote, and you also get the value of the holding. Free in your browser.
- Free
- Runs in your browser
- No sign-up
- Your data stays on your device
Run — free
Worked example
- Amount
- 100,000,000
- From
- sats
- Btc price
- 65,000
- Satoshis
- 100,000,000
- Btc
- 1
- Fiat value
- 65,000
- Sats per btc
- 100,000,000
Bitcoin amounts are often quoted in whole coins on exchanges and in satoshis on chain, wallets, and Lightning invoices. One bitcoin is defined as exactly one hundred million satoshis, so converting between the two units is pure arithmetic—but mistakes still happen when people shift the decimal eight places by hand or paste a price from the wrong market. This satoshi to bitcoin converter accepts an amount, a unit (sats or btc), and a user-supplied fiat price of one bitcoin, then returns satoshis, bitcoin, and the fiat value of that stack.
What satoshis, bitcoin, and fiat value mean together
Market price is a separate number: how many units of your chosen fiat currency (US dollars, euros, or any other) you assign to one full bitcoin at the moment you care about. Multiplying the bitcoin quantity by that price yields the fiat value of the holding. Separating the two ideas matters for bookkeeping and for teaching.
Inventory ledgers, fee estimators, and UTXO tooling think in integer satoshis so they never invent fractional sats that cannot exist on chain. Accounting, tax worksheets, and portfolio dashboards think in fiat so humans can compare bitcoin to cash, payroll, or other assets. Because the price is user-supplied, the tool stays offline, deterministic, and suitable for goldens, classrooms, and edge workers that must not phone a ticker.
Where a sats-to-BTC converter with fiat valuation earns its keep
Portfolio and tax tools need fiat valuation at a specific user-chosen price (year-end close, average cost basis, or a fixed homework quote) rather than whatever a live ticker returns mid-request. Educators and LMS platforms need a deterministic oracle for unit-conversion drills that also multiplies by a stated market price so students practice both unit analysis and valuation. Failed validation does not consume balance.
Keep amounts non-negative, pin the rounded fields in tests, and you get reproducible sats, BTC, and fiat figures for spreadsheets, n8n flows, and edge workers without standing up an exchange integration of your own.
What you can do with it
Wallet balance dual display
Convert an integer satoshi balance into BTC for UI labels and multiply by a stored mark-to-market price for a fiat total.
Classroom unit conversion drills
Check homework that asks students to convert sats to BTC and then value the stack at a stated exam price.
FAQ
How many satoshis are in one bitcoin?
Exactly 100,000,000 satoshis equal 1 BTC by definition. This converter always uses that fixed factor; market price does not change the unit ratio.
How are results rounded?
Satoshis are half-up to the nearest integer. Bitcoin is half-up to eight decimal places. Fiat value is half-up to two decimal places for currency-style display.
Does the converter use a live bitcoin price?
No. You type the price of one bitcoin yourself, in any currency and for the moment that matters to you, such as a year-end close or your average cost. That keeps the result reproducible.
Can I enter the amount in bitcoin instead of satoshis?
Yes. Choose bitcoin or satoshis as the unit of the amount you type. You get the figure in both units, plus the value of that holding at the price you entered, so you can start from either side.
How do I find what my satoshis are worth in my currency?
Enter your satoshis and the price of one bitcoin in that currency. The converter turns the satoshis into bitcoin and multiplies by the price, giving the value of the holding rounded to two decimals.
Related tools
For developers — API access
Everything on this page is available programmatically. This section is for teams who want to wire it into their own systems; everyone else can just use the tool above.
API endpoint
Prefer to automate it? One authenticated POST creates the task; the result comes back by webhook or a signed link. The same capability also runs here on the web, by email and from Telegram — and soon from our app too.
Call it from your stack
curl -X POST https://api.kit.forhosting.com/finance/satoshi-to-btc \
-H "Authorization: Bearer $KIT_KEY" \
-H "Content-Type: application/json" \
-d '{"amount":100000000,"from":"sats","btc_price":65000}'const res = await fetch("https://api.kit.forhosting.com/finance/satoshi-to-btc", {
method: "POST",
headers: {
"Authorization": `Bearer ${process.env.KIT_KEY}`,
"Content-Type": "application/json"
},
body: JSON.stringify({
"amount": 100000000,
"from": "sats",
"btc_price": 65000
})
});
const { task_id } = await res.json();import os, requests
res = requests.post(
"https://api.kit.forhosting.com/finance/satoshi-to-btc",
headers={"Authorization": f"Bearer {os.environ['KIT_KEY']}"},
json={
"amount": 100000000,
"from": "sats",
"btc_price": 65000
},
)
task_id = res.json()["task_id"]<?php
$res = file_get_contents("https://api.kit.forhosting.com/finance/satoshi-to-btc", false, stream_context_create([
"http" => [
"method" => "POST",
"header" => "Authorization: Bearer " . getenv("KIT_KEY") . "\r\nContent-Type: application/json",
"content" => '{"amount":100000000,"from":"sats","btc_price":65000}',
],
]));
$task = json_decode($res, true);body := bytes.NewBufferString(`{"amount":100000000,"from":"sats","btc_price":65000}`)
req, _ := http.NewRequest("POST", "https://api.kit.forhosting.com/finance/satoshi-to-btc", body)
req.Header.Set("Authorization", "Bearer "+os.Getenv("KIT_KEY"))
req.Header.Set("Content-Type", "application/json")
res, _ := http.DefaultClient.Do(req)Example request
{
"amount": 100000000,
"from": "sats",
"btc_price": 65000
}Example response
{
"task_id": "tsk_a1b2c3d4e5f6a1b2c3d4e5f6",
"type": "finance.satoshi_to_btc",
"status": "queued",
"_links": {
"result": "/tasks/tsk_…/result"
}
}The API is asynchronous: the call returns a task_id immediately and the result arrives by webhook. Polling is capped at 1 req/s per task.
Pricing
Published price — no tokens, no invented credits. A failed task is never charged.
Errors
| HTTP | Code | Meaning |
|---|---|---|
401 | unauthorized | Missing or invalid API key. |
402 | insufficient_balance | Your balance doesn't cover the task price. |
404 | unknown_type | That task type doesn't exist. |
429 | rate_limited | Too many requests. Use the webhook instead of polling. |
Technical notes
Invalid input fails with invalid_input and is not billed.
What satoshis, bitcoin, and fiat value mean together
A satoshi is the smallest unit commonly used on the Bitcoin network: by definition there are exactly one hundred million satoshis in one bitcoin (1 BTC = 100,000,000 sats). That ratio never changes with market price; it is a unit conversion like cents to dollars, not a valuation. This capability does both steps in one call: it normalizes your input amount into satoshis and bitcoin using the fixed one-hundred-million factor, then multiplies the bitcoin figure by the btc_price you supply to produce a fiat_value rounded half-up to two decimal places.
Input contract, units, rounding, and worked examples
POST a JSON body with three required fields. amount is a non-negative finite number (or numeric string) expressing how much you hold in the unit named by from. from must be sats (aliases sat, satoshi, satoshis) or btc (aliases bitcoin); matching is case-insensitive. btc_price is a finite number greater than zero: the fiat price of one full bitcoin in whatever currency you are using for the report. On success the response echoes amount, from, and btc_price; returns satoshis as a half-up integer; btc half-up to eight decimal places (the conventional display precision for bitcoin); fiat_value half-up to two decimals; sats_per_btc fixed at 100000000; and a short formula string restating the identity. Example: amount one hundred million, from sats, btc_price sixty-five thousand yields one bitcoin, one hundred million satoshis, and a fiat value of sixty-five thousand. Example: amount zero point five, from btc, btc_price sixty thousand yields fifty million satoshis and a fiat value of thirty thousand. Example: amount twenty-one thousand, from sats, btc_price forty thousand yields zero point zero zero zero two one BTC and a small fiat amount. Missing fields, empty strings, negative amounts, non-positive prices, and unknown units fail with invalid_input naming the problem; those failures are not billed. There is no currency code field because the price unit is whatever you choose when you set btc_price—keep labels in your own UI.
Where a sats-to-BTC converter with fiat valuation earns its keep
Wallet and explorer front-ends often display both satoshis and bitcoin for the same balance; calling a tiny pure converter keeps display math identical across web, mobile, and API clients without re-implementing the eight-decimal shift.
Integration use cases
Tax and cost-basis worksheets
Value a fixed sat or BTC amount at a year-end or average-cost btc_price you supply, offline and reproducible.
Technical questions
Do I need a live Bitcoin price?
No. You supply btc_price yourself (spot quote, cost basis, or any fiat-per-BTC figure). The API never fetches market data.
Can I convert both ways?
Yes. Set from to sats (or sat/satoshi/satoshis) to start from satoshis, or from to btc (or bitcoin) to start from bitcoin. Both paths return satoshis, btc, and fiat_value.
What does the satoshi to bitcoin converter cost?
The browser tool is free. API requests use prepaid KIT balance at $0.002 per successful call; invalid input is not billed.