All Investment Tools.
Free. No Signup.
Every calculator you need — from DCA averaging to options Greeks. Built for serious investors.
Which calculator should I use?
Our 15 calculators cover the full lifecycle of an investment decision. Pick the one that matches what you're trying to figure out right now — there's no setup, no signup, and every tool supports 10 currencies.
I'm down on a position
Use the Stock Averager to model what additional buys do to your average price, then the Break-Even Calculator to find the exit price that recovers your full cost including brokerage.
I'm planning long-term wealth
The SIP Calculator projects monthly contributions over decades. Compare it against the Lumpsum Calculator to see how dollar-cost averaging stacks up against a one-time investment.
I'm about to sell
The Target Price Calculator shows P&L at any exit price. Run the result through the Capital Gains Calculator so the short-term vs long-term tax difference doesn't surprise you.
I'm measuring returns
The CAGR Calculator normalizes returns across uneven horizons so you can fairly compare a 3-year holding to a 7-year one. For drawdown phases, the SWP Calculator shows how long withdrawals last.
I'm trading options for the first time
Start with the Options Greeks Calculator to understand Delta, Theta, Gamma, Vega before you trade. Then use Strategy Suggestions to pick a setup that matches your market view.
I'm running a multi-leg strategy
The Options Strategy Builder handles iron condors, butterflies, and verticals. Pair it with the Options Profit Calculator's P&L heatmap to see how the position behaves across prices and expirations.
I'm worried about a market drop
The Hedging Helper sizes protective puts and collars against your existing portfolio so you don't over- or under-hedge.
I'm holding through earnings
Run your option positions through the Volatility Impact Calculator first — IV crush after earnings is usually a larger move than the directional swing. Income investors should also check the Dividend Estimator.
Basic Investment Tools
Essential calculators for stock investing and portfolio planning
F&O Strategy Tools
Advanced tools for futures and options trading
Frequently asked questions
Common questions about using our calculators.
Are these calculators really free? What's the catch?+
Every tool on this page is free, with no signup, no email gate, and no paywall. We monetize through non-intrusive AdSense and affiliate links on a few blog posts. Your inputs stay in your browser — we don't store positions, portfolios, or personal data.
Which currencies are supported?+
All calculators support USD, EUR, GBP, JPY, INR, CAD, AUD, CHF, CNY, and SGD. We auto-detect your currency from your location on first visit. You can change it from the header at any time and your choice is remembered across sessions.
Do the options calculators use real Black-Scholes math?+
Yes. The Greeks, profit, and volatility calculators use the standard Black-Scholes-Merton model for European options pricing, including all five Greeks (Delta, Gamma, Theta, Vega, Rho). For American options on dividend-paying stocks, treat the output as a close approximation rather than an exact quote.
Do you account for brokerage fees and taxes?+
The Break-Even Calculator lets you input brokerage and total transaction costs to find your true breakeven exit price. The Capital Gains Calculator handles short-term vs long-term tax tiers. Other calculators show pre-tax, pre-fee numbers unless explicitly noted in the tool.
What's the difference between SIP, DCA, and Rupee Cost Averaging?+
They're the same idea under different names. SIP (Systematic Investment Plan) is the Indian mutual fund term, DCA (Dollar Cost Averaging) is the US term, and Rupee Cost Averaging is the literal Hindi/English variant of DCA. All three describe investing a fixed amount on a regular schedule. Use the SIP Calculator for any of them.
Can I use these tools for crypto or ETFs?+
The Stock Averager, Target Price, Break-Even, CAGR, SIP, Lumpsum, and SWP calculators are asset-agnostic — they work for any quantity-and-price instrument, including ETFs, crypto, and commodities. The options tools assume equity options with standard 100-share contracts; index options (SPX, NIFTY) work but cash-settled multipliers differ.