What is CAGR — Compound Annual Growth Rate?
CAGR (Compound Annual Growth Rate) is the single most useful metric for measuring investment performance. It tells you at what constant annual rate an investment would have grown from its beginning value to its ending value — assuming all gains are reinvested each year. Unlike simple returns, CAGR smooths out year-to-year volatility and gives you a clean, comparable annualised growth number.
Finance professionals, mutual fund houses, SEBI disclosures, and analysts universally use CAGR for reporting because it provides a standardised benchmark. A fund that claims "200% returns in 10 years" sounds impressive, but calculating the CAGR reveals it's actually just 11.6% per year — which you can directly compare to an index fund's 12% CAGR over the same period.
CAGR Formula
The CAGR formula is:
Where: ^ means "raised to the power of", and the result is expressed as a percentage by multiplying by 100.
Example: You invested ₹1,00,000 in a mutual fund in 2019. Today in 2026 (7 years later), it's worth ₹2,50,000.
CAGR = (2,50,000 / 1,00,000)^(1/7) − 1 = (2.5)^(0.1429) − 1 = 1.1398 − 1 = 13.98% per year
CAGR Benchmarks — What's a Good CAGR?
| Asset Class | Typical CAGR (India, Long-Term) | Notes |
|---|---|---|
| Savings Account | 2.5–3.5% | Below inflation — real wealth destruction |
| Fixed Deposits | 6.5–7.5% | Post-tax: ~5–5.5% for 30% slab |
| PPF / SSY | 7.1–8.2% | Tax-free; best for conservative investors |
| Nifty 50 Index (historical) | 12–13% | Long-term benchmark for equity |
| Large-Cap Mutual Funds | 11–13% | Consistent performers |
| Mid-Cap Mutual Funds | 14–18% | Higher volatility; higher long-term CAGR |
| Small-Cap Funds | 16–22% | For 7+ year horizons only |
| Real Estate (metro cities) | 8–12% | Highly location-dependent |
| Gold | 8–10% | Hedge; not primary wealth creator |
For long-term equity investments in India, a CAGR of 12–15% is considered good. Anything above 18% consistently over 10+ years is exceptional (Warren Buffett's Berkshire averages ~20% CAGR over 50 years).
CAGR vs Other Return Metrics
| Metric | What It Measures | Limitation |
|---|---|---|
| Absolute Return | Total % gain from start to end | Ignores time — 100% in 1 year vs 10 years looks same |
| Simple Annual Return | Divides total return by years | Ignores compounding — overestimates for volatile assets |
| CAGR | Annualised compounded return | Ignores interim volatility; misleads on SIPs |
| XIRR | Annualised return for irregular cashflows | More accurate for SIPs/multi-installment investments |
Key insight: For a single lumpsum investment, CAGR is the right metric. For SIPs (monthly instalments), always use XIRR — CAGR gives incorrect results for periodic investments because each instalment has a different holding period.
Practical Uses of CAGR in Personal Finance
- Mutual fund comparison: Compare 3-year, 5-year, and 10-year CAGRs across funds in the same category. SEBI mandates CAGR disclosure for funds with 1+ year track record.
- Goal planning: Know you need ₹50 lakh in 10 years. You have ₹15 lakh today. Required CAGR = (50/15)^(1/10) − 1 = 12.8%. Now you know which asset class is needed.
- Evaluating past investments: Your LIC endowment plan paid ₹18 lakh on ₹6 lakh over 20 years. CAGR = (18/6)^(1/20) − 1 = 5.6%. Compare to PPF's 7.1% — you lost wealth in relative terms.
- Business revenue growth: CAGR is equally used in business — a startup growing revenue from ₹1 Cr to ₹8 Cr in 5 years shows a CAGR of 51.6%.