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10 real tools · full math shown · runs in your browser

Investing math, without the spreadsheet

Growth rates, position sizing, dividend compounding, realized gains, purchasing power, forex pip value, savings interest, dollar-cost averaging, and cross-asset comparisons — the calculations behind every investing and trading decision, worked precisely.

No sign-up No data leaves your browser Standard financial formulas, shown in full
📈CAGR CalculatorCompound annual growth rate between a start and end value, and the reverse: project an ending value
🎯Position Size & Risk/RewardExact position size from your risk tolerance, entry, stop-loss and target — with the risk/reward ratio
💸Dividend Yield & DRIP GrowthCurrent yield plus a year-by-year projection of reinvested dividends compounding into more shares
🧮Profit/Loss & Cost BasisMultiple buy lots at different prices, averaged into a true cost basis, then realized gain or loss on sale
💵Inflation-Adjusted ValueWhat an amount is really worth in today's or a future year's purchasing power
🌐Forex Pip Value CalculatorExact pip value and trade profit/loss in your account currency, for any lot size
🏦Savings & CD Interest CalculatorCompound interest on a savings account or certificate of deposit, by compounding frequency and term
🪙Crypto Dollar-Cost Averaging CalculatorTotal invested, units acquired, true average cost basis, and current profit/loss across multiple buys
⚖️Compare Investment Returns Across Asset ClassesThe same starting amount compounded at different assumed annual rates, ranked side by side
📉Purchasing Power Loss CalculatorHow much real buying power an amount loses to inflation over time, year by year

Everything runs in your browser

No account, no data sent anywhere. These are standard financial formulas — CAGR, DRIP compounding, cost-basis averaging, pip value — not investment advice or a recommendation to buy or sell anything. Markets involve real risk of loss; verify any figure here against your broker's own statements before acting on it.

📈 CAGR Calculator

The compound annual growth rate between a starting and ending value — the single number that fairly compares returns over different time periods.

CAGR smooths out year-to-year volatility into a single average annual rate — a real investment rarely grows at exactly this rate every year, even though it arrives at the same ending value.

🎯 Position Size & Risk/Reward Calculator

How many shares or units to trade based on how much you're willing to risk — not a round number chosen by feel.

💸 Dividend Yield & DRIP Growth Calculator

Current yield on cost, plus a year-by-year projection of what reinvesting every dividend compounds into over time.

Assumes every dividend is fully reinvested at the then-current share price the moment it's paid — a simplification of real DRIP timing, and dividend growth is never guaranteed.

🧮 Profit/Loss & Cost Basis Calculator

Enter every buy lot at its own price, then a sale — get your true average cost basis and the realized gain or loss.

💵 Inflation-Adjusted Value Calculator

What an amount of money is really worth once you account for how much prices have risen — its actual purchasing power, not just its face value.

Use this both ways: to see what a past amount would be worth today, or what today's amount will feel like in purchasing power after a number of future years at an assumed inflation rate.

🌐 Forex Pip Value Calculator

Exact pip value in your account currency for a given lot size, and the total profit or loss on a trade measured in pips.

Enter the exchange rate needed to convert the pair's quote currency into your account currency — for a pair already quoted in your account currency, use a rate of 1.

🏦 Savings & CD Interest Calculator

Compound interest on a savings account or certificate of deposit — final balance and total interest earned for any APY, compounding frequency and term.

Uses the standard compound interest formula on the stated APY and compounding frequency. A certificate of deposit (CD) typically locks the principal for the full term; an early withdrawal usually forfeits some interest — check your institution's terms.

🪙 Crypto Dollar-Cost Averaging Calculator

Enter every recurring buy at its own price, then a current price — get your total invested, units acquired, true average cost basis, and current profit or loss.

Average cost basis is total amount invested divided by total units acquired across every buy — not a simple average of the prices you paid.

⚖️ Compare Investment Returns Across Asset Classes

The same starting amount, compounded for the same number of years at each asset class's assumed annual return — see exactly how a modest rate difference compounds over time.

These are assumed annual returns you enter, not a forecast — real returns for stocks, bonds, gold and real estate vary significantly year to year and are never guaranteed. This is a scenario comparison, not investment advice.

📉 Purchasing Power Loss Calculator

How much real buying power a fixed amount of money loses to inflation over time, year by year — and how long until it loses half its value.

This tool holds the amount fixed (as if left in cash, earning nothing) and tracks how much real buying power it loses each year to inflation — a different question from the Inflation-Adjusted Value tool, which converts an amount between two points in time.