Free Crypto Calculators and Tools

Thirteen free crypto calculators and checklists for portfolio health, profit and loss, fees, gas, risk, vesting and security. Every tool runs in your browser.

Each calculator opens with a hypothetical example filled in, and every tool updates as you type. Your inputs are not sent to any server, and every tool page explains its formula and limitations. Results are estimates for learning, not advice.

Portfolio health and risk

Crypto Portfolio Health Check

• What it answers: How concentrated is your portfolio, what share sits in small caps, stablecoins and exchange accounts, and how much risk does leverage add?
• Best for: A whole-portfolio check-up, scored 0 to 100, to repeat every few months.

Crypto Position Size Calculator

• What it answers: How large can a position be so that hitting your stop-loss costs only a set percentage of your account?
• Best for: Planning a trade’s size in advance, with fees, margin and risk-reward shown.

Returns and cost basis

Crypto Profit & Loss Calculator

• What it answers: What did a trade really make or lose after buy and sell fees, and what sell price breaks even?
• Best for: Checking one trade, entered by quantity or by amount invested.

Crypto ROI & CAGR Calculator

• What it answers: What is your total return after fees, and what does it equal as a yearly rate?
• Best for: Comparing results over different holding periods, or seeing the gain needed to recover a loss.

Crypto Average Cost Calculator

• What it answers: What is your average cost per coin across several buys, fees included?
• Best for: Keeping your cost basis straight after buying at different prices.

Crypto DCA Calculator

• What it answers: What would fixed, scheduled buys produce under a given price path, compared with investing all at once?
• Best for: Testing a recurring-buy plan against hypothetical prices before you start.

Fees and gas

Crypto Fee Comparison Calculator

• What it answers: Which of three options costs least once trading fees, spreads, payment fees and flat withdrawal fees are added up?
• Best for: Comparing the all-in cost of a purchase or a full buy-and-sell round trip.

Gas Fee Calculator & Gwei Converter

• What it answers: What will an Ethereum transaction cost in gwei, ETH and dollars at a given gas amount, base fee and priority fee?
• Best for: Pricing a transfer, swap or approval before you sign, and converting gwei, ETH and wei.

Yield, DeFi and tokenomics

APR to APY Calculator

• What it answers: What does a quoted APR become after compounding and commission, and what might a balance grow to in tokens?
• Best for: Comparing staking or lending rates that are quoted in different ways.

Impermanent Loss Calculator

• What it answers: How much less is a 50/50 liquidity pool position worth than simply holding both tokens after a price change?
• Best for: Seeing the cost of price divergence before providing liquidity, with or without fees earned.

Token Vesting Calculator

• What it answers: When do locked tokens unlock, and how much is released at launch, at the cliff and at each release after it?
• Best for: Turning a vesting schedule from a project’s documents into dates, amounts and a chart.

Security and scams

Crypto Wallet Security Checklist

• What it answers: Which protections for your recovery phrase, devices, accounts and signing habits are in place, and which critical gaps come first?
• Best for: A self-audit you can return to, with progress saved only in your own browser.

Crypto Scam Risk Checker

• What it answers: Does an offer, contact or platform show the warning signs common in crypto scams, and what should you do next?
• Best for: Pausing before you send money to someone you met online or a platform you can’t verify.

Not sure where to start?

Our four-step Start Here path pairs four of these tools with short guides. If a result looks wrong, report it through our contact page.