$BTC A BTC pair in cryptocurrency trading refers to a trading pair that uses Bitcoin (BTC) as the base currency. It allows you to trade other cryptocurrencies against BTC, such as ETH/BTC or ADA/BTC. In this pair, you use BTC to buy or sell Ethereum (ETH), Cardano (ADA), or any other coin. BTC pairs are commonly used on exchanges where Bitcoin serves as a primary trading asset. Traders use BTC pairs to accumulate more Bitcoin or to diversify portfolios without converting to fiat. BTC pairs also offer liquidity and are widely used for analyzing market strength relative to Bitcoin.