Revenue Growth Rate Calculator — MoM, YoY and CAGR

Name: Revenue Growth Rate Calculator
Author: James Blanckenberg

Last reviewed: 17 May 2026

Period-over-period growth (monthly or annual) plus multi-year CAGR to compare against benchmarks and investors' expectations.

Revenue growth rate is ((Current − Previous) ÷ Previous) × 100. From $180,000 to $250,000 is 38.9% growth. CAGR (Compound Annual Growth Rate) smooths multi-year volatility: ((End ÷ Start) ^ (1 ÷ Years)) − 1. Healthy growth for established small businesses is 10–20% annually.

How it works

Period-over-period mode compares any two revenue figures and returns the percentage change — use it for month-over-month or year-over-year tracking. CAGR mode takes a starting revenue, an ending revenue, and the number of years between them, then returns the constant annual growth rate that links the two — smoothing out lumpy individual years. CAGR is the right metric for multi-year trend reporting and investor benchmarks.

Common mistakes

Comparing high-base to low-base months — a retailer that did $100K in December and $80K in January shows -20% MoM growth that is actually normal seasonality, not decline. For seasonal businesses, always use year-over-year or a rolling 3-month average rather than raw month-on-month.
Quoting CAGR over too short a window — CAGR over a single year is just the growth rate; CAGR over two years smooths very little. The metric is most useful over 3–5 years. Three-month CAGR figures (sometimes annualised by investors hunting for a hot narrative) overstate the underlying trend and crumble in due diligence.
Growing revenue without checking margin — a 40% revenue jump that came from heavy discounting or a loss-leading product launch can actually shrink profit. Track revenue growth alongside gross margin so the topline number reflects healthy expansion rather than market-share buying.

When to use this calculator

Use this for monthly performance reviews (MoM/YoY), annual planning, investor updates, and multi-year strategic reporting (CAGR). It is the right tool for benchmarking the top line against inflation, market growth, or your own prior periods.

If you want to assess whether revenue growth is translating into bottom-line growth, pair this with the Net Profit Calculator. To turn a growth rate into a valuation impact, run the projection through the Business Valuation Calculator.

See the formula

Growth Rate (%) = ((Current Revenue − Previous Revenue) / Previous Revenue) × 100

CAGR = ((Ending Revenue / Starting Revenue) ^ (1 / Years) − 1) × 100

Example CAGR: Revenue grew from $100,000 to $250,000 over 4 years
  CAGR = (2.5)^0.25 − 1 = 25.7%

Worked example

A UK independent management consultancy closes 2024 on £680,000 of revenue. In 2025 the firm wins two larger retained clients and closes the year at £864,000. Year-on-year growth rate = (£864,000 − £680,000) ÷ £680,000 × 100 = 27.1%. That is the simple growth rate that appears in most year-end summaries.

Across multiple years, CAGR (compound annual growth rate) smooths the picture. If the same firm grew from £480,000 in 2022 to £864,000 in 2025 (three full years), CAGR = (£864,000 ÷ £480,000)^(1/3) − 1 = 21.7%. CAGR is the geometric mean — it accounts for the fact that each year's growth compounds on a larger base. CAGR is always lower than the arithmetic average of annual growth rates when growth is uneven, which is almost always.

Industry context dramatically changes how to read these numbers. 27% YoY is strong for an established UK consultancy (10–20% is benchmark, 20%+ is exceptional). The same 27% growth at an early-stage SaaS startup would be alarmingly slow — venture-backed SaaS in the under-$5M ARR band is expected to grow 100%+ YoY (the T2D3 model: triple, triple, double, double, double over five years). A mature retail business growing 27% is probably riding a one-off event (a viral product, a competitor closing). Always compare growth rates within the same industry, revenue band, and stage of business maturity.

Frequently Asked Questions

What is a good revenue growth rate for a small business?

Healthy growth varies by stage: early-stage businesses should target 20–50% annual growth, established small businesses 10–20%, and mature businesses 5–10%. High-growth tech businesses may target 50–100%+ annually. Consistent growth above inflation and market averages is the key benchmark.

What is CAGR and how do I calculate it?

CAGR (Compound Annual Growth Rate) is the constant annual growth rate that would take a starting value to an ending value over a set number of years. Formula: CAGR = (End Value / Start Value)^(1/Years) − 1. It smooths out year-to-year volatility to show underlying trend.

What is the difference between MoM and YoY growth?

Month-over-month (MoM) growth compares this month to last month. Year-over-year (YoY) compares this month (or year) to the same period 12 months ago. YoY is more meaningful for seasonal businesses as it eliminates seasonal fluctuations.

What is negative revenue growth?

Negative revenue growth means your revenue declined compared to the previous period. A -10% growth rate means you earned 10% less than before. Negative growth is a warning signal requiring investigation into its cause — losing customers, market decline, or business model issues.

How do investors use CAGR?

Investors use CAGR to compare the performance of different investments or business metrics over time on an annualised basis. A business growing at 25% CAGR is significantly more attractive than one growing at 5% CAGR, as the former will be 3.05× larger after 5 years vs 1.28× larger.

Do growth expectations differ in the US, UK, and SA?

Yes, mostly driven by market size and capital availability. US investor-backed startups typically need 100%+ year-over-year growth in early years to attract follow-on capital. UK growth-stage SMEs target 30–50% annually. South African businesses face slower addressable-market expansion and typically grow 15–30% annually even when well-run. Adjust your benchmark to your market — chasing US-style growth rates in a smaller market often forces unsustainable spending.

What is the most common growth rate mistake?

Reporting MoM growth during a high-base month and ignoring the comparison. A business that did $100K in December (holiday peak) and $80K in January shows -20% MoM growth — which looks bad but is actually a normal seasonal pattern. Always compare year-over-year for seasonal businesses, and use rolling 3-month averages for smoother trend visibility. Don't celebrate or panic based on a single high-base or low-base month.

What if my starting revenue is zero — can I calculate growth?

No — percentage growth from zero is mathematically infinite (any number divided by zero), and the calculator returns an error. For a new business or a new revenue line, track absolute revenue for the first few periods until you have a meaningful base, then start measuring percentage growth. CAGR also fails from a zero start. Use absolute revenue change ("grew from $0 to $30K in 6 months") instead until the base is meaningful.

I have my growth rate — what should I do with it?

Compare it to three things. One: inflation in your region (US ~3%, UK ~2%, SA ~5% in 2026) — growth below inflation means the business is shrinking in real terms. Two: your market's growth rate (industry reports) — beating the market means you're gaining share. Three: your own prior periods — accelerating growth is healthy, decelerating growth needs diagnosis. The number alone is meaningless; the comparison gives it meaning.

How is revenue growth different from profit growth?

Revenue growth measures the top line — total sales over time. Profit growth measures the bottom line — what's left after costs. They often diverge: a business can grow revenue 30% while profit shrinks if costs grow faster (common during rapid expansion). Conversely, profit can grow 20% on flat revenue if margins improve. Track both: revenue growth shows market traction, profit growth shows operational discipline. Healthy long-term businesses grow both, but rarely at the same rate.

Glossary

Growth Rate: The percentage change in revenue between two periods, calculated as the difference divided by the earlier period.
CAGR: Compound annual growth rate — the smoothed annual rate that links a starting value to an ending value across multiple years.
MoM and YoY: Month-over-month and year-over-year comparisons. Year-over-year cancels seasonality; month-over-month is more sensitive but noisier.

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Methodology & sources

Rates last verified: May 2026

Read the full methodology →

CAGR formula assumes geometric compounding from start value to end value over N years. Doesn't reflect intra-period volatility — a business that grew 100% one year and -50% the next can have a benign CAGR.

Rates are reviewed annually or when a region changes its headline rate. If you spot one that's out of date, email [email protected].

For information only. This calculator does not constitute financial, accounting, or tax advice. Consult a qualified professional before making business decisions.

Try these scenarios

Pre-filled examples — click any chip to load the inputs and result.

How to calculate revenue growth rate and CAGR

Pick MoM or YoY modeMonthly compares this month to last month. Annual compares year-over-year.
Enter current and previous revenueSame period type — both monthly figures, or both annual figures.
Optionally fill the CAGR sectionStarting revenue and number of years for a multi-year compound rate.
Read growth rate and CAGRPeriod-over-period growth and the smoothed CAGR display together. Use CAGR to compare against investor benchmarks.

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Written by

James Blanckenberg

Founder, BusCalcTools

Founder of BusCalcTools and FinnCalc. Builds practical financial calculators for small business owners and freelancers across the US, UK, and South Africa.

Editorial review by: James Blanckenberg, Founder & Editor

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