CAGR Calculator
Calculate Smarter. Work Faster.
Find the smoothed, compounding annual growth rate between a starting and ending value — and see how it stacks up year by year against a simple average annual growth figure.
Investment Growth Details
Enter the starting value, ending value, and the time period between them.
Enter your details and hit calculate
Calculate to see how your value would grow each year at a constant CAGR.
Understanding CAGR
CAGR (Compound Annual Growth Rate) measures the smoothed annual growth rate of an investment over a specified time period, assuming the gains are compounded every year. It is widely used to compare the performance of mutual funds, stocks, fixed deposits, business revenue, or any value that changes from a starting figure to an ending figure over multiple years, because it removes the noise of year-to-year volatility and expresses growth as a single, comparable percentage.
Unlike CAGR, a simple average annual growth figure — sometimes called a non-compounded growth rate, calculated as total growth percentage divided by the number of years — ignores the compounding effect, where gains (or losses) in early years affect the base on which later years grow. This calculator shows both figures side by side so you can see how much the compounding effect changes the picture: the simple average annual growth figure is just total growth ÷ years, while CAGR is the constant compounded rate that would take you from the initial value to the final value.
CAGR is purely a backward-looking, smoothed metric — it tells you what constant annual rate would have produced the same overall growth, not the actual rate in any individual year. Real investments rarely grow at a perfectly steady rate; some years are up sharply, others are flat or negative. The year-wise implied growth table below shows what your investment's value would look like at the end of each year if it had, hypothetically, grown at exactly the CAGR every single year — a useful way to visualize the smoothed path CAGR represents.
Formula Used
Worked example: Suppose you invested 100,000 (in any currency — for example, ₹1,00,000 for an investor in India) in a mutual fund and after 5 years it grew to 250,000. The CAGR is calculated as [(250,000 / 100,000)^(1/5) − 1] × 100 ≈ 20.11%. In this example, the simple average annual growth figure would be (150% total growth ÷ 5 years) = 30% per year — higher than the true CAGR of 20.11%, because compounding means each year's growth builds on a larger base than a straight division assumes.
A second worked example — how volatility fools the simple average
Consider an investment of 100,000 that grows +100% in year 1 (to 200,000) and then falls −50% in year 2 (back to 100,000). The simple average of the two yearly returns is (+100% − 50%) ÷ 2 = +25% — suggesting healthy growth. But the actual CAGR is [(100,000/100,000)^(1/2) − 1] × 100 = 0%, because the investment ended exactly where it started. This illustrates how an arithmetic average of yearly returns can overstate performance when returns are volatile, and why CAGR is useful for comparing the compounded outcome.
How CAGR compounds over longer periods — the "doubling" intuition (illustrative example)
A quick mental shortcut, the "Rule of 72," estimates how many years it takes an investment to double at a given CAGR: divide 72 by the CAGR percentage. This isn't exact, but it's close enough for quick comparisons and helps build intuition for how much small differences in CAGR compound over long horizons. The table below is a fixed illustrative example starting from 100,000 over 15 years — it doesn't update with the calculator inputs above:
| CAGR | Years to Double (Rule of 72) | Approx. Value of 100,000 After 15 Years |
|---|---|---|
| 6% | ~12.0 years | ≈ 240,000 |
| 10% | ~7.2 years | ≈ 418,000 |
| 14% | ~5.1 years | ≈ 714,000 |
| 18% | ~4.0 years | ≈ 1,197,000 |
The gap between a 10% and 14% CAGR looks modest year to year, but compounded over 15 years it's the difference between roughly 418,000 and 714,000 on the same 100,000 starting investment — a reminder of why even a few percentage points of CAGR difference matters enormously for long-horizon goals like retirement, and why comparing fund CAGRs carefully before committing to a long-term SIP or lump sum is worth the effort.
Reference: This calculator uses the standard CAGR formula used across the mutual fund and equity research industry, including brokerage and AMC investor-education tools. For educational use only; does not constitute investment advice.
Why CAGR Matters for Engineers, Not Just Investors
CAGR isn't only a mutual-fund metric. It's a general-purpose way to express "how fast is X growing per year, on average, once compounding is accounted for" — and engineers run into that exact question in plant, project, and career decisions far more often than the finance-only framing suggests.
Where engineers actually use CAGR
Equipment and maintenance cost trending. If your annual maintenance or spare-parts spend has grown from one figure to another over several years, CAGR gives you a single annualized escalation rate to justify next year's budget request — cleaner than quoting a raw total-increase percentage that hides compounding.
Energy tariff and utility cost forecasting. Plant electricity or fuel tariffs rarely rise in a straight line. Calculating the CAGR of a utility rate over the last 5–10 years gives a defensible annual escalation assumption to plug into energy-cost projections, diesel-generator (DG) vs. grid comparisons, or a solar payback analysis.
Raw material and component price escalation. Copper, steel, aluminum, and other input costs used in project estimation and procurement planning move year to year. CAGR of a material's price over a chosen period is a standard way vendors and estimators quote escalation clauses in long-duration contracts.
Production capacity and output growth. Comparing a plant's or line's output between two years — units produced, throughput, or capacity utilization — with CAGR shows the underlying annual growth rate independent of any single unusual year.
Project cost and revenue growth (EPC / consulting). For engineers tracking a company's or division's order book, revenue, or project-cost growth across years, CAGR is the same metric investors use for company revenue — just applied to engineering-business numbers instead of a stock price.
Salary and total compensation growth planning. An engineer comparing their own compensation at the start and end of a multi-year period can use this calculator the same way — enter starting salary/CTC as "Initial Value" and current salary/CTC as "Final Value" to see the annualized growth rate, useful context when benchmarking a raise or planning a job change.
A worked example outside investing
Suppose a plant's annual maintenance spend was 800,000 five years ago and is 1,250,000 today. CAGR = [(1,250,000 / 800,000)^(1/5) − 1] × 100 ≈ 9.35% per year — a single, defensible number for a budget memo, instead of just saying costs "went up 56% over five years," which doesn't communicate the annual rate decision-makers actually need for next year's forecast.
This calculator's math is identical regardless of what the two values represent — cost, revenue, output, or salary. Only the input labels and interpretation change.
CAGR vs XIRR vs Absolute Return
CAGR is one of three commonly quoted return metrics in investing, and picking the wrong one for your situation gives a misleading picture:
| Metric | Best For | Handles Multiple Cash Flows? |
|---|---|---|
| Absolute return | Simple total gain %, any period | No — single lump sum only |
| CAGR | Annualizing a single lump-sum investment over multiple years | No — single lump sum only |
| XIRR | SIPs or any investment with multiple deposits/withdrawals on different dates | Yes |
A common mistake is applying CAGR to a SIP (Systematic Investment Plan) — since a SIP involves many separate monthly investments at different dates rather than one lump sum, CAGR's single initial-value/final-value formula doesn't correctly capture the time-weighting of each installment. XIRR (Extended Internal Rate of Return) is built specifically to handle irregular cash flows on different dates and is the correct metric for SIP performance; use our SIP Calculator for that case, and reserve this CAGR calculator for a genuine single lump-sum investment held over multiple years.
Common Mistakes When Using CAGR
1. Using CAGR for a SIP or any recurring investment. As covered above, CAGR only works for a single lump sum with one start date and one end date — use XIRR for SIPs or any series of deposits/withdrawals.
2. Treating CAGR as a guaranteed or "actual" yearly return. CAGR is a smoothed backward-looking average; no individual year necessarily grew at exactly that rate, and future years are not guaranteed to match it either.
3. Comparing CAGR figures over different time periods without context. A 5-year CAGR and a 1-year CAGR aren't directly comparable — short periods are far more sensitive to the specific start and end dates chosen (a 1-year CAGR measured right after a market crash looks very different from one measured right after a rally).
4. Ignoring the impact of the chosen start/end dates ("CAGR cherry-picking"). Since CAGR only uses two data points, choosing a favorable starting low point or ending high point can make a CAGR figure look far better than the investment's typical experience — always check the full value history, not just the two endpoints, before trusting a quoted CAGR.
5. Not accounting for taxes and expense ratios. The CAGR calculated here is on the raw investment value; your actual post-tax, post-expense return will be lower once capital gains tax and fund expense ratios are factored in.
Frequently Asked Questions
Is CAGR only useful for investors, or can engineers use it too? +
CAGR is a general-purpose annualized growth metric, not an investing-only concept. Engineers commonly use it to annualize maintenance-cost escalation, energy tariff trends, raw material price increases, production output growth, project revenue growth, and even their own salary/CTC growth between two points in time. The formula and this calculator work the same way regardless of what the two values represent.
Why is CAGR different from the simple average annual growth figure? +
The simple average annual growth figure is a non-compounded figure, calculated by dividing total growth by the number of years. Unlike CAGR, it does not account for compounding — where each year's growth builds on a base that already includes prior years' gains or losses. The two figures usually differ: for positive total growth, the simple average annual growth figure is higher than CAGR; for negative total growth, it is lower; they are equal when total growth is zero — this calculator shows both so you can compare them directly.
What does the "Year-Wise Implied Growth" table actually show? +
Real investments rarely grow at a perfectly steady rate every year. This table simulates what your value would be at the end of each year if it had grown at exactly the calculated CAGR every single year — it's a smoothed, hypothetical path, not your actual historical year-by-year performance, but it helps visualize what the CAGR percentage really represents.
Can CAGR be negative? +
Yes. If your final value is lower than your initial value, the CAGR formula returns a negative percentage, representing an average annual decline over the period. The calculator handles this the same way — the formula only requires the initial value and time period to be greater than zero.
Is CAGR the same as an investment's actual return in any given year? +
No. CAGR is a smoothed, backward-looking average — it tells you the constant rate that would have produced the same overall growth, not what actually happened year to year. An investment could have a strong CAGR while individual years were volatile, including years with losses.
What's a "good" CAGR for a mutual fund or stock? +
This depends heavily on the asset class, time period, and risk taken. There's no universal benchmark — a "good" CAGR for a low-risk debt fund looks very different from a "good" CAGR for an equity fund. CAGR is best used to compare similar investments over the same period, or to compare a fund against its relevant benchmark index, rather than against an arbitrary fixed number.
Should I use CAGR or XIRR for my SIP returns? +
Use XIRR for a SIP. CAGR assumes a single lump sum invested at one point in time and withdrawn at another; a SIP involves many separate installments on different dates, and only XIRR correctly time-weights each one to give an accurate annualized return.
Does CAGR account for dividends or only price appreciation? +
CAGR only reflects the change between your two input values, so if you enter just the price/NAV without adding back dividends or distributions received along the way, you'll understate the true total return. For a complete picture with a mutual fund, use the total-return NAV (which reinvests dividends) as your final value where available.
Why do two sources quote different CAGR figures for the same fund? +
This almost always comes down to different start/end dates being used, or one source using price NAV while another uses total-return NAV (which includes reinvested dividends). Always check the exact period and NAV type behind any quoted CAGR before comparing two sources directly.
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