Annualized ROI Calculator

Return, investment and days to annualized rate

Quick Answer

Annualized ROI Calculator: Return, investment and days to annualized rate. Annualized ROI Calculator uses standard business & tax formulas to compute accurate results instantly.

Invested

Got back

Months held

Annualized ROI (CAGR)

+22.15%

Total +35.0% over 18mo · simple annualized +23.33%

Total ROI+35.0%

Profit¥35,000

Simple annual+23.33%

Doubles every42mo

Steps

1Total ROI = (135,000 − 100,000) ÷ 100,000 = 35.0%
2Holding = 18 months = 1.50 years
3Simple: 35.0% ÷ 1.50 = 23.33%/yr
4CAGR: (135000/100000)^(1/1.50) − 1 = 22.15%/yr
5CAGR < simple always (compounding penalty) — use CAGR to compare across deals

Benchmarks (annualized)

This deal ←	22.15%
Bank deposit 1y	1.5%
10yr treasury	1.7%
S&P 500 long-run	10%
VC target fund	20%

💡 "Doubled in 3 years" sounds like 33%/yr but is actually 26% CAGR — always annualize geometrically when comparing deals of different lengths. Beware cherry-picked ROI that ignores interim cash flows: if money went in/out mid-way, you need IRR, not ROI. And risk-adjust: a 30% return with 50% chance of losing everything has negative expected value for most people.

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How to Use

Enter business figures: fill amounts, tax rates or costs in the Annualized ROI Calculator.
Instant results: payable/cost/profit indicators update live.
Check policy basis: results cite current tax rates and policy references for compliance.
Compare plans: adjust parameters to compare tax or cost outcomes.

Key Points

Annualized ROI Calculator is a free online business & tax tool — open and use, no sign-up.
All calculations run locally in your browser; your data never leaves the device.
Key capability: Return, investment and days to annualized rate.
Results come with formulas and reference tables so you can verify every number.

Formula & How It Works

Annualized ROI Calculator formula

Annualized ROI Calculator uses standard business & tax formulas to compute accurate results instantly.

FAQ

How do I use the Annualized ROI Calculator?

Open the page and fill in the input fields — results update automatically. Return, investment and days to annualized rate.

Are the results accurate?

Yes. Standard tax and accounting formulas are used. Official filings should follow your tax authority.

Is it free?

Completely free, no registration required.

Are tax rates up to date?

Current standard rates are used and synced when policies change.

Can results be used for official filing?

For reference only. Official tax filing should follow the tax authority's determination.

Related Guides

Source & Updates

Based on current standard tax rates and accounting practice. Last updated: 2025-07

Authoritative sources:

Last updated: 2026-08-04

Formulas and content on this page are reviewed by the YiJianSuan team. For reference only — official sources prevail.

Cite this page: YiJianSuan. Annualized ROI Calculator[EB/OL]. https://www.yijiansuan.com/en/c/biz/roi-annual

Results provided by this tool are for reference only and do not constitute professional advice.