Crypto & Web3 Tools
Free crypto calculators for gas fees, staking rewards, DeFi impermanent loss, NFT royalties, airdrop tax, and more. Everything runs in your browser — no sign-up, no data sent to servers, completely private.
Ethereum Gas Fee Calculator
Calculate ETH transaction costs and compare Layer 1 vs Layer 2 fees. See exact costs for transfers, swaps, and NFT mints.
Impermanent Loss Calculator
Calculate how much impermanent loss you face when providing liquidity to an AMM pool. Compare holding vs LP returns.
Staking Rewards Calculator
Calculate staking returns for any cryptocurrency. See projected earnings over time with compounding.
Crypto Profit/Loss Calculator
Calculate gains and losses on your crypto trades. Enter buy and sell prices to see profit in USD and percentage.
DCA Calculator
Plan dollar-cost averaging into crypto. See how periodic investments grow over time vs lump-sum buying.
Airdrop Tax Calculator
Estimate taxes owed on crypto airdrops. Calculate taxable income from token distributions in your jurisdiction.
Token Vesting Calculator
Model token unlock schedules. See when vested tokens become available and plan your strategy.
Wei / Gwei / ETH Converter
Convert between Ethereum denomination units. Instantly translate Wei, Gwei, and ETH values.
NFT Royalty Calculator
Calculate NFT creator royalty earnings from primary and secondary sales. Estimate total income in ETH and USD.
ETH Validator Profitability Calculator
Calculate if running an Ethereum validator is profitable. Compare solo vs pool staking and see break-even price.
Satoshi to BTC Converter
Convert between Bitcoin denominations — Satoshi, bits, mBTC, cBTC, and BTC. See the USD value of any Bitcoin amount instantly.
Bitcoin Mining Profitability Calculator
Calculate if Bitcoin mining is profitable with post-halving 3.125 BTC reward. See daily revenue, electricity costs, and hardware payback period.
Bitcoin Halving Countdown 2028
Track the countdown to the next Bitcoin halving. See blocks remaining, estimated date, reward changes, and complete halving history.
Bitcoin Cost Basis Calculator
Calculate your BTC cost basis using FIFO, LIFO, and HIFO methods. Compare capital gains across accounting methods to minimize your tax bill.
Sats Per Dollar Calculator
See how many satoshis you get per dollar at any BTC price. Check Moscow Time, daily stacking projections, and historical comparisons.
Lightning Network Fee Calculator
Calculate Lightning Network transaction fees and compare with on-chain Bitcoin costs. See savings across multiple payments and break-even analysis.