Binance Coin (BNB): Uses, Market Cap, and Support Explained

BNB is the native cryptocurrency of BNB Chain and the utility token of the Binance exchange. Binance created it in 2017 to give traders a discount on trading fees. It now also pays transaction fees on BNB Chain, secures the network through staking, and works as a payment and access token across Binance products and third-party apps. Its market cap is the token price multiplied by the circulating supply, and that supply shrinks over time because Binance permanently destroys (“burns”) BNB on a schedule.

The ticker is BNB. The name has changed as the project grew. The token launched as “Binance Coin.” When Binance Chain and Binance Smart Chain were combined under the BNB Chain name in 2022, the project began describing BNB as “Build and Build.” Exchanges and data sites still widely call the coin Binance Coin, and both names refer to the same asset.

Key Takeaways

• BNB launched in a July 2017 initial coin offering with a hard cap of 200,000,000 tokens. Repeated burns have cut circulating supply to 131,510,900 BNB.
• BNB pays gas fees on BNB Chain, earns discounts on Binance trading fees, and is used for staking, token sales and some merchant payments.
• The network runs on proof of staked authority.
• In November 2023 Binance and its founder Changpeng Zhao pleaded guilty to U.S. anti-money-laundering violations. This matters because BNB’s value is closely tied to the exchange.

What Is BNB in Crypto?

BNB sits in two roles at once.

1. It is an exchange token. On Binance, users can pay trading fees in BNB and receive a discount, and BNB gives access to programs such as Launchpad token sales.
2. It is a layer-1 blockchain coin. On BNB Chain, every transaction and smart contract interaction pays its fee (gas) in BNB, much as Ethereum transactions pay gas in ether.

This dual role sets BNB apart from most large cryptocurrencies. Its demand comes partly from a single company’s customer base and partly from an open blockchain that other developers build on.

Warning

On November 21, 2023, Binance pleaded guilty to violating U.S. anti-money-laundering and sanctions laws and agreed to pay about $4.3 billion. Changpeng Zhao (often called CZ) stepped down as CEO, pleaded guilty to failing to maintain an effective anti-money-laundering program, and agreed to a $50 million fine. On April 30, 2024, he was sentenced to four months in prison. He received a U.S. presidential pardon in October 2025. Binance continues to operate as one of the largest crypto exchanges. Because BNB’s utility depends heavily on Binance, legal or regulatory action against the exchange can affect the token directly.

BNB History: From ERC-20 Token to Its Own Chain

BNB began as an ERC-20 token on Ethereum. Binance sold it in an ICO in July 2017, a few weeks before the exchange opened. The original allocation of the 200 million tokens was:

In 2019 Binance launched its own blockchain, Binance Chain, and BNB moved off Ethereum to become that chain’s native coin. In 2020 it added Binance Smart Chain, which supports Ethereum-style smart contracts and became the home of most BNB-based decentralized apps. The two networks were rebranded together as BNB Chain in 2022. The original Binance Chain (later called BNB Beacon Chain) was then retired so that BNB Smart Chain carries the ecosystem. The official project site is bnbchain.org.

How BNB Works

BNB Smart Chain uses proof of staked authority (PoSA), which combines two ideas:

• Proof of stake: validators lock up BNB, and holders can delegate BNB to them. Stake determines which validators are elected to produce blocks.
• Proof of authority: a limited, rotating set of elected validators produces blocks in turn, which keeps block times short and fees low.

Validators collect the transaction fees users pay in BNB and share rewards with the holders who delegated to them. The trade-off is decentralization. A small active validator set is faster to coordinate than thousands of independent miners or validators, but it concentrates block production in fewer hands than networks such as Bitcoin or Ethereum.

Because BNB Smart Chain is compatible with the Ethereum Virtual Machine, wallets such as MetaMask and Trust Wallet can connect to it. Ethereum-based smart contracts can also be deployed on it with few changes. Tokens issued on the chain follow the BEP-20 standard, the BNB Chain equivalent of ERC-20.

BNB Coin Burning and Supply

BNB has a fixed maximum supply of 200,000,000 tokens, all of which were created at launch. No new BNB is minted, so supply only moves in one direction: down.

How the burns work

In the early years, Binance used one-fifth of its quarterly profits to buy back BNB and burn it, sending the tokens to an address no one controls. That profit-based method was later replaced by an Auto-Burn formula. The quarterly burn amount is now calculated from BNB’s price and the number of blocks produced during the quarter, which makes it independently verifiable rather than dependent on Binance’s internal accounts. The stated long-term goal is to cut total supply to 100 million BNB, half the original amount.

A second mechanism, introduced through a network upgrade, burns a portion of the gas fees paid on BNB Smart Chain in real time. This works in a similar spirit to Ethereum’s fee burn: more network activity means more BNB destroyed.

Reading the supply figures

Circulating supply and total supply are the same number, 131,510,900 BNB. Subtracting that from the 200,000,000 cap gives 68,489,100 BNB removed by cumulative burns. Two consequences follow:

• Market cap = price × circulating supply. Because circulating and total supply match, the fully diluted value (FDV) equals the market cap.
• Burns raise the share of the network each token represents. If market cap stayed flat while supply fell, the price per token would rise. A burn does not guarantee a price increase, since demand can fall faster than supply.

For example (hypothetical numbers): if BNB traded at $500 with 150 million tokens outstanding, market cap would be $75 billion. Burn 10 million tokens and hold market cap constant, and the implied price becomes $75 billion ÷ 140 million, about $536.

Uses of BNB

• Trading fee discounts on Binance. Users who enable BNB fee payment on Binance pay their trading fees in BNB at a discounted rate. The discount size is set by Binance and can change.
• Gas fees on BNB Chain. Every transfer, swap or smart contract call on BNB Smart Chain is paid in BNB, so anyone using decentralized apps on the chain needs a small BNB balance.
• Staking and delegation. Holders can delegate BNB to validators and earn a share of network rewards.
• Launchpad and Launchpool. Binance has used BNB holdings to determine eligibility and allocation for new token sales and farming programs on the exchange.
• Payments. Over the years, travel booking sites such as Travala.com, various payment processors and online services have accepted BNB. Merchant acceptance changes, so a service listed as accepting BNB in the past may no longer do so.
• DeFi collateral. On lending and trading protocols built on BNB Chain, BNB is commonly posted as collateral or paired in liquidity pools.

Where BNB Is Supported

Exchanges and pairs

BNB trades on Binance and on many other centralized exchanges. Pairs are written as base/quote. BNB/USDT means the price of one BNB quoted in Tether’s dollar stablecoin (USDT), and a pair such as BNB/EUR quotes it in euros.

Derivatives

BNB also trades as BNB/USDT perpetual futures. Perpetuals have no expiry date and track the spot price through funding, a periodic payment between long and short traders. A positive funding rate means longs pay shorts, which typically happens when the perpetual trades above spot. Open interest is the total value of contracts still open, not the amount traded that day.

Wallets and networks

BNB can be held in Binance accounts or in self-custody wallets that support BNB Smart Chain, such as Trust Wallet or MetaMask (after adding the network). When moving BNB, for example from Trust Wallet to Binance, the sending and receiving sides must use the same network. BNB Smart Chain is usually labeled “BSC” or “BEP20” on exchange withdrawal screens. Sending over a network the destination does not support can make funds hard or impossible to recover.

Is BNB a Good Investment?

• Exchange dependence. Fee discounts, Launchpad access and much of BNB’s demand come from Binance, so the exchange’s regulatory standing, user numbers and business decisions feed directly into the token.
• Supply reduction. Burns reduce supply over time, which supports value only if demand holds.
• Network usage. Gas demand depends on how many people use BNB Chain apps compared with competing chains such as Ethereum and Solana.
• Centralization. A smaller validator set and a close tie to one company give BNB a different risk profile from more decentralized networks.

Like other cryptocurrencies, BNB has had large drawdowns. Its price can fall far below a previous all-time high and stay there for long periods.