Crypto & DeFi
34 free crypto & defi tools in the Calculators & Converters collection — every one runs in your browser with no signup and no uploads.
Bicarbonate Deficit Calculator
Estimate total bicarbonate replacement in metabolic acidosis
Solidity Gas Limit Estimator
Estimate gas for common EVM operations and Solidity patterns
Bitcoin Difficulty & Block Time Estimator
Estimate the next difficulty adjustment from the current hashrate trend
Bitcoin Halving Countdown
Calculate blocks and days until the next Bitcoin halving event
CBDC vs Crypto vs Stablecoin Comparison Tool
Compare central bank digital currencies, stablecoins, and crypto on key risk dimensions
Crypto Arbitrage Profit Calculator
Calculate arbitrage profit between two exchanges after fees and slippage
Crypto Break-Even Price Calculator
Calculate the price needed to break even after fees and cost basis
Crypto Collateral Swap & Refinancing Cost Calculator
Calculate the all-in cost of swapping collateral in a DeFi lending position.
Crypto DCA Backtest Tool (Manual Data)
Backtest a dollar-cost averaging strategy with manually entered price history
Crypto DCA Target Price Calculator
Calculate how many DCA purchases reach your target average cost basis
Crypto Futures PnL Calculator
Calculate realised P&L on a closed long or short futures position
Crypto Estate & Inheritance Planning Checklist
Generate a personalised crypto asset inheritance checklist for estate planning.
Crypto Portfolio Diversification Scorer
Score your crypto portfolio's diversification across asset types and correlation
Crypto Position Size & Risk Calculator
Calculate position size from account risk, entry, and stop-loss
Crypto ROI & CAGR Calculator
Calculate return on investment and compound annual growth rate for crypto
Crypto Tax Lot Calculator (FIFO / LIFO / HIFO)
Calculate capital gains/losses from crypto disposals using FIFO, LIFO, or HIFO
Crypto Tax Treatment by Jurisdiction
Look up crypto capital gains, income, and mining tax rules for 40 countries
Crypto Wash Sale Rule Tracker (US / UK)
Track potential wash-sale or bed-and-breakfasting patterns in your crypto trades
DeFi Collateral Ratio & Health Factor Calculator
Calculate collateral ratio and health factor for lending protocols like Aave
DeFi Flash Loan Cost Calculator
Calculate Aave or dYdX flash loan fee for a given borrow amount
DeFi Protocol Rug Pull Risk Scorer
Score a DeFi project's rug-pull risk from on-chain and structural indicators
DeFi Yield Farming Tax Liability Estimator
Estimate income tax on DeFi yield from lending, liquidity provision, and farming
DeFi Yield Optimizer Comparison
Compare DeFi strategy yields: lending, LPing, staking, vault strategies
Garden Irrigation Deficit Calculator
Calculate supplemental watering needed after measured rainfall
Liquidity Pool Position Value Calculator
Track current value and fee income of a Uniswap V2 LP position
Crypto Licence Jurisdiction Checker
See which jurisdictions require a licence for your crypto-asset service
MiCA Crypto-Asset Classification Tool
Classify your token under the EU Markets in Crypto-Assets Regulation
Crypto Mining Profitability Calculator
Calculate BTC or ETH-equivalent mining profit after electricity costs
NFT Royalty Calculator
Calculate NFT royalty income across primary and secondary sales
Crypto Wallet Age & HODL Duration Calculator
Calculate HODL duration and ROI from any manually-entered acquisition date
Crypto Options Greeks Calculator (Black-Scholes)
Calculate delta, gamma, theta, vega, and rho for crypto vanilla options
Satoshi / Wei / Gwei Unit Converter
Convert between BTC (satoshi, mBTC, BTC) and ETH (wei, gwei, ether) units
Sodium Deficit Calculator for Hyponatraemia Replacement
Volume of hypertonic saline needed to correct serum sodium
Crypto Staking APY Calculator
Calculate real staking yield with compounding frequency and token price change