Risk Management
The Kelly Criterion, and Why Most Traders Shouldn't Use Full Kelly
The Kelly criterion sizes bets for maximum long-run growth, if you know your edge. See the math, the drawdowns and why full Kelly is a ceili...
Crypto portfolio health
Shape a healthier crypto portfolio
Free calculators and plain-English guides that show your real costs, your concentration risk and your security gaps. No sign-up, no hype, and nothing you type leaves your browser.
Free crypto calculators
All tools →- Crypto Portfolio Health CheckScore your portfolio's concentration, stablecoin buffer, custody and leverage in about a minute.
- Crypto Profit & Loss CalculatorSee your real profit after fees, plus the exact break-even sell price.
- Crypto DCA CalculatorModel a recurring-buy plan: coins accumulated, average cost and the result against a lump sum.
- Crypto ROI & CAGR CalculatorTurn any gain or loss into ROI and an annualized CAGR.
- Crypto Average Cost CalculatorCombine every buy into one average cost, fees included, and test your next purchase.
- Crypto Position Size CalculatorSize a position so a stop-loss costs only the amount you choose to risk.
- Gas Fee Calculator & Gwei ConverterEstimate an Ethereum fee from gas units, base fee and tip, and convert gwei to ETH.
- Crypto Fee Comparison CalculatorCompare up to three platforms by total cost: trading fee, spread and withdrawal fee.
- Token Vesting CalculatorMap a token's unlock schedule from TGE through the cliff to the final release.
- APR to APY CalculatorConvert APR to APY and back, after compounding and commission.
- Impermanent Loss CalculatorSee how a price move changes a 50/50 pool position compared with holding.
- Crypto Wallet Security ChecklistCheck 24 wallet-security habits and see which ones to fix first.
- Crypto Scam Risk CheckerAnswer 12 quick questions to see whether an offer shows scam red flags.
Guides by topic
New here? Start here →- Portfolio HealthStart with: What Is a Healthy Crypto Portfolio? 7 Vital Signs to Check
- Crypto MathStart with: How to Calculate Crypto Profit and Loss (Including Fees)
- DCAStart with: Dollar-Cost Averaging in Crypto: A Complete Beginner's Guide
- Fees & GasStart with: Ethereum Gas Fees Explained: Base Fee, Priority Fee and Gas Limit
- Wallet SecurityStart with: Crypto Wallet Security: The Complete Checklist
- Scam AwarenessStart with: How to Spot a Crypto Scam: 12 Red Flags
- TokenomicsStart with: Token Vesting Explained: Cliffs, Linear Unlocks and TGE
- Risk ManagementStart with: Crypto Position Sizing: The 1% Risk Rule Explained
Latest guides
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Risk Management
Max Drawdown: Setting a Personal Loss Limit
Max drawdown measures the largest peak-to-trough fall in an account. Learn how to calculate it, turn it into a personal loss limit and set r...
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Risk Management
Risk-Reward Ratio in Crypto Trading, Calculated
The risk-reward ratio compares a trade’s possible gain with its possible loss. Learn the formula, the break-even win rate it implies and why...
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Tokenomics
Airdrop Allocations and Vesting: Reading the Fine Print
Airdrop vesting decides how much of an allocation you can actually use, and when. Learn to read claim windows, cliffs, unlock rates and forf...
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Tokenomics
Token Burns Explained: What They Do and Don't Do
Token burns explained: how burns cut supply, why some burns change nothing for holders, and how to net burns against new issuance, with a wo...
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Tokenomics
Token Inflation and Emissions: How Dilution Affects Holders
Token inflation quietly shrinks your share of a network. Learn how emissions work, how to calculate dilution, and why staking rewards are pa...
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Scam Awareness
How to Report a Crypto Scam in the US, UK, EU and Beyond
How to report a crypto scam in the US, UK and EU: which agency to use, what evidence to gather and how to total your loss. Details checked S...
