Under pace
Spend is behind elapsed time. Check budget caps, targeting, approvals and planned changes before increasing delivery.
Compare the share of budget spent with the share of the campaign flight elapsed. See the budget pacing formula, straight-line forecast and daily spend needed from here.
Delivery is falling behind the flight.
Actual spendWhere spend should be
The calculator uses inclusive calendar days. A 100% pacing index means the share of budget spent matches the share of flight elapsed.
Spend is behind elapsed time. Check budget caps, targeting, approvals and planned changes before increasing delivery.
Spend and time are moving at a similar rate. Continue to monitor the individual campaign lines behind the total.
Spend is ahead of elapsed time. Review whether the flight will exhaust its budget before the end date.
Pacing index% budget spent ÷ % flight elapsed
Straight-line forecastspend to date ÷ elapsed fraction
Required daily spendremaining budget ÷ remaining days
The forecast assumes the average spend rate continues. It does not account for weekday patterns, scheduled budget changes, platform learning, seasonality or performance quality.
This calculator covers one flight. Spendwake maps every plan line, holds unexplained spend and prepares the checked closeout.