THE TROJAN TOOLKIT
Campaign Budget Pacer
Check whether spend is ahead of your calendar. Bring one campaign’s dates and budget, then leave with a daily allowance and a report you can share.
Put the spend on a calendar.
What remains for the next day?
$200.00 ahead of an even spending pace.
20 calendar days remain, with $1,800.00 unspent.
- Spend expected at an even pace
- $1,000.00
- Actual spend through reporting day
- $1,200.00
- Average per elapsed day
- $120.00
- Projected final spend at the current pace
- $3,600.00
This allowance is arithmetic for your plan. It does not change an ad account, set a platform limit or account for billing delays.
Compare the calendar with the budget.
An even plan uses the same share of budget as time. A launch, a sale or a seasonal peak may intentionally follow a different pattern.
10 of 30 days
$1,200.00 of $3,000.00
How pacing is calculated
Both campaign dates are included. Reporting through means the end of that complete day. The day before the campaign starts represents zero elapsed days. All date differences use calendar dates, so a daylight saving change does not add or remove a campaign day.
Even pace spend equals the budget multiplied by elapsed days divided by total days. Projected final spend equals actual spend divided by elapsed days, multiplied by total days. The remaining daily allowance divides the unspent budget by remaining days and rounds down to the nearest cent. Overspending is shown separately, never as a negative allowance.
Projections assume the average continues. They do not model weekday schedules, seasonality, pending charges, taxes or platform delivery rules. Compare complete reports from the same timezone. At zero elapsed days a forecast is unavailable; after the final day there is no remaining allowance.
Your inputs stay in this browser tab. The CSV includes the assumptions and results you download. The inquiry link shares the tool topic, not your budget.
A PRACTICAL FIELD GUIDE
Explain the budget before the month ends
A spending report tells you what has happened. A pacing calculation adds the calendar: how much of the period has passed, what an even plan would have spent, and what remains. Use this campaign budget calculator before changing a daily allowance or explaining a variance to an owner. It uses your own dates and amounts, with no account connection.
Prepare the weekly marketing report
Put spend beside elapsed time so a manager can distinguish an early spending surge from a campaign nearing its end.
Check a fixed promotion
Use the actual start and end dates of a sale or launch. A calendar month is unnecessary when the offer lasts twelve days.
How to use it
- 01
Set one reporting period
Enter the first and last campaign dates. Both count. Choose the last complete day in your spend report, using the same account timezone throughout.
- 02
Match the money to those dates
Enter the period budget and spend through the reporting day. Include the same cost categories in each amount. Do not compare media spend against a budget that also includes unrelated production costs.
- 03
Read the gap before changing anything
Compare actual spend with the even pace figure. Then check the projected finish and remaining daily allowance. An intentional launch surge may explain the difference.
- 04
Keep a dated record
Export the CSV for your report. It includes the input dates, assumptions and results. Recalculate after another complete reporting day rather than treating an old forecast as a live total.
FROM INPUT TO DECISION
Worked example: $1,200 spent in ten days
The loaded example runs September 1 through September 30, 2026. Its total budget is $3,000, with reporting complete through September 10.
| Measure | Calculation | Result |
|---|---|---|
| Elapsed / remaining days | 10 / 20 | One third of the period has passed |
| Even pace spend | $3,000 × 10 ÷ 30 | $1,000 |
| Actual spend above even pace | $1,200 − $1,000 | $200 |
| Projected final spend | $1,200 ÷ 10 × 30 | $3,600 |
| Remaining daily allowance | ($3,000 − $1,200) ÷ 20 | $90 |
The $3,600 figure assumes the first ten days’ average continues. The $90 allowance instead spreads the unspent $1,800 across the remaining twenty days. Neither changes an advertising account.
Do not confuse even spending with good results
A perfectly paced campaign can still attract poor inquiries. Review qualification and booked work alongside spending before deciding to increase or reduce the allowance.
Keep partial days out
A morning export compared with a whole elapsed day can make a campaign appear behind. Wait for a complete day or use the preceding day’s completed report.
Questions & limits
The model uses calendar days. It does not adjust for weekday schedules, seasonal peaks, pending charges or platform delivery rules.
Amounts remain in this tab. The daily allowance rounds down to a cent. Overspend is displayed separately; a zero budget has no defined percentage spent.
Can I check a campaign before it starts?
Yes. Set reporting through to the day before the start and spend to zero. The remaining allowance is available, but a projection needs at least one elapsed day.
What happens on the final day?
Once that complete day is included, the period has no remaining daily allowance. The tool shows the final entered spend and any unspent budget.
Should I immediately spend any remaining balance?
The calculation only shows what remains. Whether to use it depends on campaign performance, useful demand and your ability to serve the resulting work.
Connect the pacing report to campaign decisions
Bring the dates, the spend definition and the inquiries that resulted. Trojan can help organize measurement and review the campaign scope.
Review my campaign measurementExplore the related service