Calcometry
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Investing & returns
Investment math for planning: ROI, CAGR, compound interest, stock P&L, dividend yield, Rule of 72, DCA, inflation-adjusted returns, and rebalancing.
9 tools in this section
ROI
Calculate return on investment percentage and dollar gain. Not investment advice.
CAGR
Calculate CAGR from starting value, ending value, and years held.
Compound Interest
Project balance with compound interest and monthly contributions. Estimate only.
Stock Profit
Calculate stock trade profit or loss including fees. Not tax or investment advice.
Dividend Yield
Calculate dividend yield from share price and annual dividend per share.
Rule of 72
Estimate years to double money at a given annual return using the Rule of 72.
DCA
Simulate dollar-cost averaging with fixed monthly investments. Hypothetical returns only.
Inflation
Estimate inflation-adjusted (real) return from nominal return and inflation rate.
Portfolio Rebalance
See how much to buy or sell to hit target portfolio allocation. Not investment advice.