How many satoshis are in a Bitcoin? BTC and sats explained

How many satoshis make one Bitcoin?

There are 100,000,000 satoshis in one BTC. “Sat” is the singular abbreviation and “sats” is the common plural. A satoshi is the smallest unit recorded on Bitcoin’s base blockchain, as explained in Bitcoin.org’s vocabulary.

Satoshis let you write small Bitcoin amounts as whole numbers. For example, 0.00001000 BTC becomes 1,000 sats. You still hold BTC; the wallet is showing it in smaller units.

This relationship is built into the software. Bitcoin Core’s amount definition uses 100,000,000 satoshis for one BTC. Market prices can move while that unit relationship stays the same.

BTC-to-sats conversion table

Use the unit label as well as the number. In the BTC column, the eight digits after the decimal point show whole-satoshi precision. Extra zeros at the end leave the value unchanged.

Scroll across the table to see all columns.

For quick reference: 10,000 sats = 0.0001 BTC; 100,000 sats = 0.001 BTC; 1 million sats = 0.01 BTC. Save the table if your purchase provider uses BTC and your wallet defaults to sats.

How do you convert BTC to sats, and sats to BTC?

BTC to sats: multiply by 100,000,000. A quantity of 0.00045678 BTC × 100,000,000 = 45,678 sats.

Sats to BTC: divide by 100,000,000. A quantity of 45,678 sats ÷ 100,000,000 = 0.00045678 BTC.

Keep all eight BTC decimal places when checking a receipt. Rounding 0.00045678 BTC to 0.0005 BTC changes it from 45,678 sats to 50,000 sats—a difference of 4,322 sats. A rounded dashboard can look different from the detailed transaction even when the underlying records agree.

1. Copy the quantity and its unit from the detailed receipt or wallet entry.
2. Convert it with the appropriate formula, retaining every digit.
3. Compare like with like: final delivered BTC with the matching wallet receipt, in the same unit.
4. If a display is rounded, open its transaction details or export before treating the difference as missing funds.

How much are 1,000, 10,000 or 100,000 sats worth?

To estimate a dollar value, convert the sats to BTC and multiply by the dollar price of one BTC: sats ÷ 100,000,000 × price per BTC. Use a price and timestamp appropriate to the question. A historical purchase cost and today’s market value answer different questions.

The prices below are invented for easy arithmetic. They are teaching examples, with no purchase, delivery or sale charges included.

Scroll across the table to see all columns.

In this example, 100,000 sats stays 0.001 BTC at both prices. Its estimated dollar value falls from $100 to $80. A wallet’s dollar display can change while its satoshi quantity remains the same. Use an actual provider quote to find the cost of a purchase or the proceeds of a sale.

Worked example: match your purchase receipt to your wallet

Suppose a fictional order shows 0.00125000 BTC before a 0.00002000 BTC delivery deduction. The provider says that deduction includes the complete delivery charge for this example. The expected wallet receipt is 0.00123000 BTC, or 123,000 sats.

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The subtraction is 125,000 − 2,000 = 123,000 sats. Compare the wallet receipt with the final delivery amount. If the provider has already deducted the fee in that final amount, subtracting it again would incorrectly predict 121,000 sats.

If your wallet already held Bitcoin, open the incoming transaction instead of comparing its entire balance with one order. Match the full receiving address and transaction ID as well as the quantity. The transaction-ID guide shows which record to request when a provider reports an on-chain transfer.

What is the difference between sats and sat/vB?

A number in sats is a Bitcoin quantity. A number in sat/vB is a fee rate: satoshis per virtual byte of transaction size. Bitcoin.org’s fee explanation describes how the rate and transaction size determine the network fee.

For a hypothetical transaction of 150 virtual bytes at 2 sat/vB, the network fee is 150 × 2 = 300 sats, or 0.00000300 BTC. Two sat/vB describes the rate; 300 sats describes the resulting fee for that assumed size.

Use your wallet’s actual fee preview because transaction size and the chosen rate vary. A purchase provider may quote a delivery or withdrawal charge that includes other costs. The network-fee versus withdrawal-fee guide explains which amounts to compare and how to avoid counting a charge twice.

What if the BTC and sats amounts still differ?

Work through these checks before contacting support. They help distinguish a display issue from a payment that needs investigation.

1. Confirm the asset and route. Check BTC, the supported network and the intended receiving wallet. For Lightning, use the matching Lightning payment record; see the Bitcoin-versus-Lightning guide for receiving details.
2. Open the detailed order and the individual incoming payment. Record the quantity, unit, date and current status from each.
3. Convert both quantities into sats without rounding. Check whether a short dashboard display omits decimal places.
4. Find the final delivery quantity after any disclosed deduction. Compare it with the amount credited to your address, rather than the total value of a batched transaction.
5. Match the full destination and transaction ID. If the order is still pending, ask which step remains before another purchase attempt.
6. If a difference remains, send the provider the order reference, expected sats, observed sats and transaction ID through its official support channel. Ask it to explain the exact difference.

For example, if the final delivery record promises 123,000 sats but the matching incoming payment shows 122,000 sats, the gap is 1,000 sats. Ask the provider to reconcile that difference with its fee and delivery record. Keep wallet recovery words and private keys private.

The Bitcoin-versus-Lightning guide explains route differences; the unconfirmed-transaction guide covers a transfer still waiting for the required confirmations.

Can you buy one satoshi or a small amount of Bitcoin?

Bitcoin’s unit size and a provider’s purchase minimum are separate details. One satoshi is a base-chain unit; an available offer has its own minimum order, payment costs and delivery terms. An exchange can also set a withdrawal minimum. Kraken’s withdrawal guidance illustrates why the current withdrawal screen matters.

For a small purchase, check the minimum, total dollar charge and final quantity that reaches your intended destination. Our fractional-Bitcoin guide focuses on choosing a dollar budget and the effect of fixed fees.

When you are ready to compare funding methods, the buy Bitcoin pillar guide explains debit cards, credit cards, ACH and wire options. Fiat2Bitcoin plans Paybis card/ACH and Transak card/wire checkout. Purchases remain unavailable while provider approval, integration and launch checks are completed; the provider will handle customer payment and crypto delivery.