Cryptocurrency tools

Convert BTC/satoshi, ETH/Gwei/wei and custom token units exactly in your browser.

Calculate the quantity-weighted average price across spot purchases and include fees paid in the quote currency.

Calculate linear long or short trading PnL, fees, initial margin and break-even prices locally.

Calculate net profit and the break-even sell price after trading and withdrawal fees.

Calculate a position size from account equity, risk budget, stop price and trading fees.

Estimate fixed-rate funding payments for a linear perpetual position using your own inputs.

Compare a 50/50 constant-product liquidity position with holding the same two tokens.

Calculate circulating market cap, total-supply valuation, maximum-supply FDV and implied token prices.

Validate public EVM, Bitcoin, Solana and TRON address formats locally.

Estimate Ethereum execution gas fees using EIP-1559 or legacy pricing, entirely locally.

Encode and decode ABI parameters and function calldata, and compute selectors or event topics locally.