What this calculator does
Quarter-over-quarter growth sits between the noisy immediacy of a monthly comparison and the slower-moving year-over-year view, which is why it is the standard cadence for company earnings reporting: frequent enough to catch a real shift in trend, smooth enough that a single unusual week does not dominate the number.
As with any short-window growth rate, the raw QoQ figure can be misleading on its own if quietly annualised in your head. This calculator does the compounding explicitly, so a quarter that looks merely solid on paper is shown for what it would mean if repeated four times running.
The formula
The quarterly rate is the plain percentage change between the two quarters. The annualised figure asks what that same rate would compound to across four quarters: (1 + QoQ)^4 − 1. Because there are only four compounding steps rather than twelve, the gap between the quarterly rate and its annualised equivalent is smaller than the same exercise run monthly, but it is still not simply four times the quarterly rate.
| Term | Meaning |
|---|---|
| This quarter | The current quarter’s figure. |
| Last quarter | The immediately preceding quarter’s figure. |
| QoQ growth | (This quarter − last quarter) ÷ last quarter × 100. |
| Annualised rate | What the QoQ rate compounds to over four quarters, equal to (1 + QoQ)^4 − 1. |
The inputs explained
| Field | What to enter |
|---|---|
| This quarter’s value | This quarter’s figure. |
| Last quarter’s value | The immediately preceding quarter’s figure. |
When to use it
Reading a company’s earnings release
QoQ is the headline comparison in most quarterly reporting, since it reacts to genuine shifts in trend faster than a year-over-year figure while smoothing out the noisiest week-to-week swings.
Spotting a change in trajectory
A run of QoQ figures that flips from consistently positive to consistently negative is a clearer trend signal than any single monthly or weekly reading.
Comparing to guidance
When a company has previously guided to a specific quarterly growth rate, this calculator turns the two raw quarterly figures into the same percentage terms the guidance was given in.
Working out what a quarter implies for the year
The annualised figure is a useful sense-check on whether an unusually strong (or weak) quarter looks sustainable, or whether it is an outlier against the trend the business is actually on.
Worked examples
Every figure in the tables below is produced by this page’s own calculator at build time, so the numbers and the tool always agree. Select any row to load that scenario.
How the QoQ figure changes as this quarter’s result varies
A fixed prior-quarter figure of 300,000 against a range of outcomes for this quarter.
| This quarter | QoQ growth | Change | If sustained, annualised rate |
|---|---|---|---|
| 285,000 | -5.00% | -15,000.00 | -18.5% |
| 300,000 | 0.000% | 0 | 0.000% |
| 315,000 | 5.00% | 15,000.00 | 21.6% |
| 330,000 | 10.0% | 30,000.00 | 46.4% |
| 360,000 | 20.0% | 60,000.00 | 107.4% |
How the same result reads against different starting points
The current quarter held at 315,000 while the prior quarter it is compared against varies.
| Last quarter | QoQ growth | Change | If sustained, annualised rate |
|---|---|---|---|
| 262,500 | 20.0% | 52,500.00 | 107.4% |
| 300,000 | 5.00% | 15,000.00 | 21.6% |
| 315,000 | 0.000% | 0 | 0.000% |
| 350,000 | -10.0% | -35,000.00 | -34.4% |
| 420,000 | -25.0% | -105,000.00 | -68.4% |
Questions
Why compare to last quarter rather than the same quarter last year?
QoQ answers “is the trend continuing right now,” which reacts faster to a real change in trajectory. YoY answers “are we bigger than a year ago,” which is more resistant to seasonality but slower to reflect a recent shift.
Does QoQ need to be adjusted for seasonality?
It can be, and many official statistics agencies publish a seasonally adjusted QoQ figure specifically because raw QoQ can be distorted by predictable seasonal patterns (a stronger Q4 for retail, for example). This calculator computes the raw, unadjusted comparison.
How does the annualised QoQ figure compare to the annualised MoM figure for the same underlying growth?
They should be similar if the growth is genuinely steady, but QoQ compounds over only four periods rather than twelve, so it is less sensitive to a single unusually strong or weak short period than a monthly figure annualised the same way.
What does a QoQ growth rate of exactly 0% mean?
That the current quarter exactly matches the prior quarter, with no change either way: the calculator will also show an annualised rate of 0% in that case, since a rate of zero compounds to zero regardless of how many periods it is applied over.
Can I use this for any quarter-length period, not just calendar quarters?
Yes: the maths only needs two consecutive, equal-length periods. Fiscal quarters that do not align with the calendar work exactly the same way.
For a longer window that removes seasonality entirely, see the year-over-year growth calculator. For a shorter window with faster reaction, use the month-over-month growth calculator.