Month-Over-Month Calculator — MoM Growth Rate
Calculate month-over-month (MoM) growth: enter the previous and current month values for any metric — revenue, users, units sold — and get the percentage change, absolute change, and annualized growth rate.
Positive growth vs prior month
- 1
Absolute change
112,000 − 100,000 = 12,000 - 2
Month-over-month %
12,000 ÷ 100,000 × 100 = 12Divides by the absolute value of the previous month so the sign stays correct when the base is negative.
How does this calculator work?
MoM growth = (current − previous) ÷ |previous| × 100. A $100k to $112k move is +12% MoM, which annualizes to about +270% if sustained. Useful for tracking revenue, users, or any metric month to month; pair with YoY to control for seasonality.
Formula
How this is calculated
Month-over-month growth measures how much a metric changed from one month to the next, expressed as a percentage. The formula divides the absolute change (current minus previous) by the absolute value of the previous month's figure and multiplies by 100. Using the absolute value of the base avoids sign confusion when a metric moves from negative territory (e.g. a loss) to positive.
The annualized rate compounds the monthly rate over 12 months: (1 + MoM/100)^12 − 1. This is the equivalent annual growth rate if the same MoM rate were sustained every month for a full year. A 5% MoM rate compounds to about 80% annualized — a useful reminder that even modest monthly growth is powerful at scale. Conversely, a −5% MoM decline annualizes to about −46%.
The projected curve shows the next 6 months of trend at the current MoM rate, assuming it stays constant. This is a straight-line extrapolation used for illustration; real metrics rarely grow at a perfectly constant monthly rate. MoM is best used alongside year-over-year (YoY) figures to control for seasonality — a high month in January after a slow December may look like strong MoM growth but simply reflect a seasonal pattern.
Frequently asked questions
It depends heavily on the industry and stage. Early-stage tech startups often target 10–20% MoM; established businesses may aim for 1–5%. At 10% MoM, a metric grows about 3.1× in a year. Context and industry benchmarks matter more than any single number.
MoM compares consecutive months and is sensitive to seasonal swings. YoY compares the same month in different years, smoothing out seasonality. Both are useful — MoM tracks momentum; YoY controls for seasonal patterns.
When the previous value is negative (e.g. a monthly loss of −$10k), dividing by the raw negative number would flip the sign of the result and give a counterintuitive percentage. Using the absolute value of the base gives a directionally correct percentage change regardless of the sign of the starting figure.
Also known as
TG we-Calculate Editorial Team. (2026). Month-Over-Month Calculator — MoM Growth Rate [Online calculator]. TG we-Calculate. https://we-calculate.com/calculator/month-over-month-calculator
TG we-Calculate Editorial Team. "Month-Over-Month Calculator — MoM Growth Rate." TG we-Calculate. 2026. https://we-calculate.com/calculator/month-over-month-calculator.
TG we-Calculate Editorial Team, "Month-Over-Month Calculator — MoM Growth Rate," TG we-Calculate, 2026. [Online]. Available: https://we-calculate.com/calculator/month-over-month-calculator
@misc{wecalculate_month_over_month_calculator, title = {Month-Over-Month Calculator — MoM Growth Rate}, author = {{TG we-Calculate Editorial Team}}, howpublished = {\url{https://we-calculate.com/calculator/month-over-month-calculator}}, year = {2026}, note = {TG we-Calculate} }
Did this calculator help you?