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Professional Tools.
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Every tool runs entirely in your browser. No account, no data collection, no limits. Just open and use.
Risk Management
Risk & Position Size Calculator
Enter your account balance, risk percentage, entry price, and stop-loss to instantly calculate position size, dollar risk, and R:R ratio.
Stop-Loss / Take-Profit Calculator
Calculate stop-loss and take-profit prices for any R:R ratio. Works for spot and futures, long and short.
Break-Even After Loss Calculator
Enter a loss percentage to calculate the exact gain required to return to break-even — and see why drawdown control is the most important skill in crypto trading.
Kelly Criterion Calculator
Input your historical win rate and risk:reward ratio to calculate the mathematically optimal percentage of capital to risk per trade using the Kelly Criterion formula.
Win Rate & Expectancy Calculator
Enter your win rate, average winning trade size, and average losing trade size to calculate expectancy per trade, whether your strategy has a mathematical edge, and projected monthly P&L.
Martingale Strategy Calculator
Enter your starting order size, multiplier, number of levels, and price step to calculate every level of your martingale position ladder — total invested, average entry, and break-even price at each level.
Anti-Martingale (Paroli) Calculator
Set your base bet, win multiplier, and target consecutive wins to map out the full Paroli progression — see max profit potential, probability of completing the win streak, and expected value per cycle.
Investment Planning
DCA Investment Planner
Model DCA buy schedules, calculate average cost basis, and see projected portfolio growth over any time horizon.
Crypto Compound Interest Calculator
Project portfolio growth using compound interest. Enter initial investment, monthly contribution, APY, and time horizon.
Portfolio Rebalancer
Enter your current holdings and target allocation percentages. The tool calculates exactly how much to buy or sell of each asset to reach your desired portfolio weighting.
Staking Rewards Calculator
Enter your staked amount, APY, and duration to calculate monthly and total staking rewards with optional compounding. Works for ETH, Cosmos, Solana, and any PoS asset.
ROI Target Calculator
Enter your entry price, investment amount, and target price to see exact profit in dollars and ROI. Or enter a target ROI% to calculate the required exit price.
Trade Analysis
Profit / Loss Calculator
Enter entry price, exit price, quantity, and exchange fees to see net profit/loss and ROI for any crypto trade.
Entry Averaging Calculator
Enter your existing position size and average price, then add new purchase details to instantly see your updated average entry, total units held, and total cost.
Fibonacci Retracement Calculator
Enter a swing high and swing low to get all key Fibonacci retracement and extension levels — 23.6%, 38.2%, 50%, 61.8%, 78.6%, 127.2%, and 161.8%.
Crypto Unit Converter
Enter a coin price and amount to instantly convert between crypto units and USD. Works in both directions — coins to USD or USD to coins.
Crypto Tax Estimator
Enter buy price, sell price, quantity, holding period, and your tax bracket to estimate capital gains tax. Covers US short-term and long-term rates.
Grid Bot Calculator
Enter a price range, number of grids, and total capital to calculate grid spacing, capital per grid, and estimated profit per completed cycle for automated grid trading bots.
Percentage Change Calculator
Calculate the percentage change between two prices, or find a target price from a percentage move. Perfect for tracking drawdowns, profit targets, and price movements.
Crypto Arbitrage Calculator
Enter buy price, sell price, trade amount, and fees to calculate net arbitrage profit, net ROI, gross spread, and the minimum trade size needed to break even on cross-exchange crypto arbitrage.
TWAP Order Calculator
Enter total order size, number of intervals, execution window, and fee rate to calculate your TWAP (Time-Weighted Average Price) schedule — minimize market impact and slippage on large crypto orders.
Scalping P&L Calculator
Enter account size, risk per trade, R:R ratio, win rate, and trades per day to calculate expectancy per trade, daily P&L, monthly returns, and whether your scalping strategy has a positive edge.
Mean Reversion Calculator
Enter current price, moving average, and ATR or standard deviation to calculate deviation bands, Z-score distance from the mean, optimal entry zone, profit target, and stop loss for mean reversion setups.
Futures Trading
Liquidation Price Calculator
Calculate your liquidation price for long and short futures positions given leverage, entry price, and margin.
Funding Rate Calculator
See the cumulative funding fees paid or earned over any holding period for perpetual futures positions. Supports long and short on any position size.
Leverage & Margin Calculator
Enter position size and leverage to calculate required margin and effective exposure, or enter available margin and leverage to find your maximum position size.
Crypto Options Payoff Calculator
Enter option type, strike price, premium paid, contract size, and current underlying price to calculate break-even, max profit, max loss, current intrinsic value, and a full expiry payoff table.
Why Traders Use DennTech Tools
Every tool on this page was built to solve a real problem active crypto traders face daily. Whether you're sizing a position before entering a trade, calculating your liquidation price before adding leverage, or planning a DCA strategy around a market correction — these calculators handle the math instantly so you can focus on the decision.
Most professional trading tools are locked behind expensive subscriptions or bundled into bloated platforms. DennTech's approach is different: build the exact calculator you need, make it free, make it fast, and get out of the way. No upsell. No freemium limit. No account required.
From the Kelly Criterion Calculator for mathematically optimal bet sizing to the Grid Bot Calculator for automated strategy planning, the 28 tools here cover every calculation a serious crypto trader needs — whether you trade spot, futures, or run bots.
Zero data collected
Every calculation runs entirely in your browser with JavaScript. Your account balances, trade sizes, and portfolio values never leave your device — not even for analytics.
Instant, no install
Open any tool and start calculating immediately. Works on desktop, tablet, and mobile in any modern browser. No app download, no plugin, no waiting.
Free forever, no limits
No daily calculation limit, no premium tier, no email gate. Every tool is free for unlimited use. If we build new tools, they'll be free too.
Frequently Asked Questions
Common questions about DennTech's free crypto trading tools.
Are all the tools completely free?
Yes — every tool on DennTech is 100% free with no account, no subscription, and no paywall. There is no premium tier and no upsell. All 28 tools are free forever.
Do I need to sign up or create an account?
No. Every tool works instantly in your browser — just open the page and start calculating. No email address, no account creation, and no login required at any point.
Is my trading data safe?
Completely. All calculations run in your browser using JavaScript. No numbers you enter — trade sizes, account balances, portfolio values — are ever sent to a server or stored anywhere. Your data never leaves your device.
How accurate are the calculations?
The formulas are standard industry calculations — the same math used in professional trading platforms for position sizing, liquidation price, DCA cost averaging, compound growth, Kelly Criterion, and more. Results are mathematically precise. However, they are provided for informational purposes only and do not constitute financial advice.
What devices and browsers are supported?
All tools work on any modern browser — Chrome, Firefox, Safari, and Edge — on desktop, tablet, and mobile. No app download or plugin installation required.
What is the best free crypto position size calculator?
DennTech's Position Size / Risk Calculator lets you input your account balance, risk percentage, entry price, and stop loss to instantly calculate the correct position size for any trade. It's free, browser-based, and requires no account.
Which tool should I use to avoid liquidation?
Use the Liquidation Price Calculator before entering any leveraged trade. Enter your entry price, leverage, and position type (long/short) to see the exact price at which your position would be liquidated — so you can set your stop loss safely above that level.
Can I request a new tool?
Absolutely. Use the tool request button below or the Contact page to suggest a calculator. Requests are reviewed regularly and the most-requested tools get built and published — for free.
Don't See the Tool You Need?
Tell us what you're missing and we'll consider building it. Seriously.
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