What Is BNB? The Cryptocurrency Explained

Last updated: June 14, 2026

BNB is the native cryptocurrency of the BNB Chain ecosystem and one of the largest digital assets by market value. It started life as Binance Coin in 2017 and has grown into a token used to pay network fees, access trading discounts, and power a wide range of applications — including the crypto casinos that accept it for fast, low-cost play. This guide explains what BNB is as a cryptocurrency, where it came from, how it differs from the network it shares a name with, and what it’s actually used for.

What BNB Is

BNB is a cryptocurrency — a digital asset that can be sent, received, and held like any other crypto. It’s the native token of the BNB Chain ecosystem, meaning it’s the currency used to pay for activity on that blockchain, the same way ETH is native to Ethereum.

Being “native” is what sets BNB apart from the thousands of other tokens that exist on the same network. Those other tokens are built on top of the chain using a token standard; BNB is the underlying currency the chain itself runs on. That distinction is the source of a lot of confusion, which the next section clears up. For the token standard those other assets use, our guide on what BEP-20 is explains it in full.

In practical terms, BNB is one of the most widely held and traded cryptocurrencies in the world. It’s available on virtually every major exchange, accepted across a large ecosystem of applications, and — relevant here — used as a payment method at a growing number of online casinos.

BNB the Coin vs BNB Smart Chain the Network

This is the point that confuses most newcomers, and it’s worth getting straight because it affects how you use BNB. “BNB” and “BNB Smart Chain” are related but not the same thing.

BNB is the coin — the cryptocurrency itself, the asset you buy, hold, and spend. BNB Smart Chain is the network — the blockchain that BNB runs on, where transactions are processed and applications are built. The coin and the network share a name, but one is the money and the other is the infrastructure it moves across.

An analogy helps: think of BNB the coin like a currency, and BNB Smart Chain like the payment rails that move it. You hold the currency; the network is what processes your transactions when you spend it. When a casino says it accepts BNB, it means the coin; when it says deposits use BNB Smart Chain or BEP-20, it’s referring to the network. You need both — the coin to spend and the correct network to send it on.

This is why choosing the right network matters so much when sending BNB: the coin can technically exist on more than one network, and casinos use BNB Smart Chain specifically. Our guide on what Binance Smart Chain is covers the network in depth, while this page stays focused on the coin.

A Short History of BNB

BNB’s history explains why it exists on multiple networks and why its name changed over time.

2017 — launch as Binance Coin. BNB was created by the Binance exchange and launched through an initial coin offering. At the start, it was an ERC-20 token — meaning it lived on the Ethereum network — and its original purpose was to give traders discounts on Binance’s trading fees.

2019 — Binance Chain. Binance launched its own blockchain, and BNB migrated from Ethereum to this new network as its native coin. This was the chain later known as the Beacon Chain.

2020 — Binance Smart Chain. A second, more capable chain launched alongside it, adding smart contract functionality — the programmability that lets applications, including casinos, be built on it. This is the network now called BNB Smart Chain, and it’s the one used for crypto gambling.

2022 — the BNB rebrand. The ecosystem was rebranded under the BNB Chain name, and “BNB” was reframed as standing for “Build and Build” rather than Binance Coin. The two chains became the BNB Beacon Chain and the BNB Smart Chain, together forming BNB Chain. The coin kept its ticker, BNB, throughout.

The takeaway from this history is simply that BNB has evolved from a trading-fee token into the native coin of a full blockchain ecosystem. For everyday use today — including gambling — what matters is BNB on BNB Smart Chain.

What BNB Is Used For

BNB has grown well beyond its original purpose. Today it has several distinct uses across the ecosystem.

Network fees (gas). Every transaction on BNB Smart Chain is paid for in BNB. When you send BNB or any BEP-20 token, the small gas fee comes out of your BNB balance. This is the most fundamental ongoing use of the coin, and it’s why you always need a little BNB on hand even when sending other tokens.

Trading fee discounts. BNB’s original use case persists — holding and using BNB on the Binance exchange reduces trading fees. This is what drove its early adoption and remains a reason many traders hold it.

Payments and applications. BNB is accepted as a payment method by a wide range of services, from online merchants to DeFi protocols to crypto casinos. Its speed and low fees make it practical for actual transactions, not just holding.

The wider ecosystem. Across the BNB Chain ecosystem, BNB is used in decentralised finance, token launches, NFTs, and more. The breadth of these uses is part of why it has remained one of the largest cryptocurrencies. For how it functions specifically as a gambling currency, our guide on the benefits of BNB for online gambling goes deeper.

BNB Supply and Token Burns

One distinctive feature of BNB is its deflationary supply mechanism, which is worth understanding as part of what makes the coin what it is.

BNB launched with a fixed maximum supply, and Binance committed to permanently removing coins from circulation over time through a process called burning — sending tokens to an address they can never be retrieved from. The stated goal has been to reduce the total supply substantially from its original level, gradually making the remaining coins scarcer.

Originally these burns happened quarterly based on exchange activity. The mechanism later shifted to a more automated, formula-driven burn tied to network usage and BNB’s price. The practical effect is that the circulating supply of BNB decreases over time rather than increasing, which is unusual among major cryptocurrencies and is often cited as a defining characteristic of the coin.

For a player, the supply mechanism mainly matters in that it contributes to BNB’s price movements, which is a reason to be aware of volatility when holding the coin. It isn’t something you need to track to use BNB at a casino, but it’s part of understanding what BNB is as an asset.

Why BNB Suits Online Gambling

BNB has become a popular choice for online gambling for reasons that come directly from what it is as a coin on its network.

Transactions on BNB Smart Chain are fast, confirming in about a minute, and cheap, with fees measured in cents. For a player making frequent deposits and withdrawals, that combination is practical in a way that slower or pricier networks aren’t. The speed suits the rapid pace of crypto-native casino games, and the low fees mean even small transactions make sense.

BNB is also widely available and easy to acquire, which lowers the barrier to getting started. Combined with the large ecosystem of casinos that accept it, this accessibility is part of why BNB gambling has grown. If you’re ready to get BNB, our guide on how to buy BNB walks through the process, and how to start playing with BNB covers the full journey from coin to casino.

Understanding BNB as a coin is the foundation for using it well. With that in place, the practical guides on wallets, deposits, and choosing a platform build on it. Where it’s legal for you to play, you can compare options among the best BNB casinos.

Always gamble responsibly. Read our responsible gambling page for practical guidance, and see our advertiser disclosure for affiliate information.

FAQ

1. What is BNB in simple terms?
   BNB is a cryptocurrency — the native coin of the BNB Chain ecosystem. It’s used to pay network fees, get trading discounts on Binance, and as a payment method across many applications including crypto casinos. It started as Binance Coin in 2017 and is now one of the largest cryptocurrencies.
2. Is BNB the same as BNB Smart Chain?
   No. BNB is the coin — the cryptocurrency you hold and spend. BNB Smart Chain is the blockchain network that BNB runs on, where transactions are processed. They share a name but one is the currency and the other is the network it moves across.
3. What was BNB originally called?
   Binance Coin. BNB launched in 2017 as Binance Coin, originally as an ERC-20 token on Ethereum, to give traders fee discounts on the Binance exchange. In the 2022 rebrand, “BNB” was reframed as standing for “Build and Build,” though the ticker stayed BNB throughout.
4. What is BNB used for?
   Its main uses are paying network gas fees on BNB Smart Chain, reducing trading fees on Binance, and acting as a payment method across applications including DeFi, NFTs, and crypto casinos. The gas-fee use is the most fundamental — every BSC transaction is paid for in BNB.
5. Why does BNB’s supply decrease over time?
   BNB uses a burn mechanism that permanently removes coins from circulation, reducing the total supply over time. This started as quarterly burns and shifted to an automated, usage-based formula. The decreasing supply is unusual among major cryptocurrencies and is a defining feature of BNB.
6. Is BNB good for online gambling?
   BNB suits online gambling because transactions on BNB Smart Chain are fast (about a minute) and cheap (fees in cents), which works well for frequent deposits and withdrawals. It’s also widely available and accepted at many casinos. Whether to gamble at all depends on your local laws and personal circumstances.
7. Where does BNB run?
   BNB is the native coin of BNB Chain, and for everyday use it runs on BNB Smart Chain — the network that supports applications and is used by crypto casinos. It also exists on the BNB Beacon Chain, but BNB Smart Chain is the relevant one for gambling and most transactions.
8. How do I get BNB?
   You buy it on a cryptocurrency exchange and withdraw it to your own wallet on BNB Smart Chain. Major exchanges including Binance, Coinbase, and Kraken list BNB. Our how to buy BNB guide covers the full process step by step.