A Satoshi is the smallest unit of Bitcoin, named after its pseudonymous creator Satoshi Nakamoto. 1 BTC = 100,000,000 Satoshis (1 hundred million).

What is mBTC and bits?

mBTC (millibitcoin) = 0.001 BTC = 100,000 Satoshis. Bits (μBTC, microbitcoin) = 0.000001 BTC = 100 Satoshis.

Satoshi to BTC Converter

Convert between Satoshis and Bitcoin (BTC). One BTC equals 100,000,000 Satoshis.

By AbraCalc Editorial Team · Reviewed by AbraCalc Methodology Review · Last reviewed: 2026-06-25

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How to use this tool

Enter the number of Satoshis you want to convert.
Read the equivalent value in BTC, mBTC (millibitcoin), and bits (microbitcoin).

Bitcoin is divisible to 8 decimal places. The smallest unit is 1 Satoshi = 0.00000001 BTC. Use this converter to switch between Satoshi, mBTC, bits, and BTC.

Formula

BTC = Satoshis ÷ 100,000,000

mBTC (millibitcoin) = Satoshis ÷ 100,000

Bits (μBTC) = Satoshis ÷ 100

How it works

Bitcoin is divisible to eight decimal places; the smallest unit is the satoshi, equal to 0.00000001 BTC. This converter applies the fixed divisors that define each denomination: 10⁸ satoshis per BTC, 10⁵ per millibitcoin, and 10² per bit (microbitcoin).

All three results are exact by definition — no rounding or approximation is involved. The converter does not apply any exchange rate, so results are in BTC-denominated units only, not fiat currency.

Worked example

Worked example: convert 100,000,000 satoshis

Input: 100,000,000 satoshis.
BTC = 100,000,000 ÷ 100,000,000 = 1 BTC.
mBTC = 100,000,000 ÷ 100,000 = 1,000 mBTC.
Bits = 100,000,000 ÷ 100 = 1,000,000 bits.

1 BTC = 1,000 mBTC = 1,000,000 bits = 100,000,000 satoshis.

Key terms

Satoshi (sat): The smallest unit of Bitcoin, equal to 0.00000001 BTC (one hundred-millionth of a bitcoin), named after Bitcoin's creator Satoshi Nakamoto.
Millibitcoin (mBTC): One thousandth of a bitcoin (0.001 BTC), equal to 100,000 satoshis; often used for mid-range transaction amounts.
Bit (μBTC): One millionth of a bitcoin (0.000001 BTC), equal to 100 satoshis; sometimes used for small micropayments.
Divisibility: Bitcoin's property of being splittable into up to eight decimal places, making it practical for both tiny and large transactions.
On-chain denomination: All Bitcoin transactions are denominated and stored in satoshis at the protocol level; other units are display conventions only.

Frequently asked questions

What is a Satoshi?: A Satoshi is the smallest unit of Bitcoin, named after its pseudonymous creator Satoshi Nakamoto. 1 BTC = 100,000,000 Satoshis (1 hundred million).
What is mBTC and bits?: mBTC (millibitcoin) = 0.001 BTC = 100,000 Satoshis. Bits (μBTC, microbitcoin) = 0.000001 BTC = 100 Satoshis.