Free tool · Meta budget mechanics

The Facebook ad cost calculator that knows Meta’s pacing.

A daily budget on Meta is really a weekly target: up to 75% over on a good day, never more than 7× in a Sunday-to-Saturday week, and no catch-up for a week you underspent. Enter your budget, month-to-date spend, and auction assumptions to see what your clicks and results cost, your real pace, and where the month is heading.

The daily budget set on the campaign or ad set

Month-to-date amount spent, through yesterday

What you actually want to spend this month

Cost assumptions2026 all-industry averages — replace with your account’s numbers

Cost per 1,000 impressions; conversion campaigns average ~$14.68

Click-through rate; feed ~1.3%, Reels and Stories higher

Clicks that become results; lead gen often runs 5–12%

Enter your daily budget and month-to-date spend to see your cost per click and per result, your pace, and the month charted day by day against Meta’s spending limits. The math runs on the real calendar — this month, week by week — not a 30.4-day approximation.

Formulas: cost per click = CPM ÷ (1,000 × CTR). Cost per result = CPC ÷ conversion rate. Monthly plan = daily budget × calendar days. Pace = month-to-date spend ÷ (daily budget × completed days). Projection re-paces each Sunday–Saturday week toward 7× the daily budget, capped at 175% per day (210% with budget sharing). All math runs in your browser — nothing is stored or sent anywhere.

The mechanics

How Meta actually spends a daily budget.

Your daily budget is a weekly target

Meta’s own documentation is explicit: a daily budget sets “a daily spending target over the course of a calendar week” running Sunday through Saturday. On high-opportunity days Meta spends up to 75% over it; on slow days, less. The hard limits are 175% of your daily budget in any day and 7× in any calendar week — and with ad set budget sharing on, 210% and 8.4×, because up to 20% can flow in from sibling ad sets.

Underspend is only recovered inside the week

If Meta is behind the current week’s target it pushes up to the daily limit until the week is back on track. But once a Saturday closes light, that money is gone — next week starts fresh at 7× and never looks back. This is the opposite of Google’s June 2026 pacing, which chases a 30.4× monthly total all month long. The projection above models Meta’s behavior, not Google’s: behind-pace months mostly stay behind.

From budget to clicks to results

Meta sells impressions, so every cost derives from CPM. CPC = CPM ÷ (1,000 × CTR); cost per result = CPC ÷ conversion rate. At the 2026 all-industry averages — $11.54 CPM, 1.49% CTR, 1.94% click-to-conversion — a click runs about $0.77 and a result about $40. Swap in your account’s numbers: a conversion-objective campaign averaging $14.68 CPM with a strong 9% lead-form conversion rate prices a lead under $11.

Budget a month on the calendar, not on 30.4

Google Ads bills against daily budget × 30.4, so advertisers reflexively divide monthly targets by 30.4 everywhere. Meta has no such constant — it paces days and weeks on the real calendar. Divide a target by 30.4 and you overshoot a 31-day month by ~2% and undershoot February by nearly 8%. Daily budget = monthly target ÷ actual days in the month, which is what the recommendation above computes.

FAQ

Facebook ad costs, answered.

How much do Facebook ads cost in 2026?

Across all industries in 2026, Facebook ads average about $1.72 per click, $11.54 per 1,000 impressions (CPM), a 1.49% click-through rate, and roughly a 1.94% click-to-conversion rate. Costs vary widely by industry and campaign objective — conversion-optimized campaigns average around $14.68 CPM while reach campaigns run near $7.19.

How is Facebook ad cost calculated?

Meta charges for impressions won in its ad auction, so everything derives from CPM. Cost per click = CPM ÷ (1,000 × CTR). Cost per result = cost per click ÷ conversion rate. At an $11.54 CPM and 1.49% CTR, a click costs about $0.77; at a 1.94% conversion rate, a result costs about $40.

Can Facebook spend more than my daily budget?

Yes. On high-opportunity days Meta may spend up to 75% over your daily budget — never more than 175% of it in a single day — but no more than 7× your daily budget across a calendar week running Sunday through Saturday. With ad set budget sharing enabled the limits rise to 210% daily and 8.4× weekly.

Does Meta catch up if my campaign underspends?

Only within the current calendar week. If spend is behind that week’s target, Meta pushes up to 175% of your daily budget per day until the week is back on track — but a previous week’s underspend is never recovered. That is the opposite of Google Ads, whose 2026 pacing chases a 30.4× monthly total.

How do I calculate my Facebook ads budget pace?

Divide month-to-date spend by (daily budget × days of the month already completed). Over 100% means you are over pace, under means behind. Because Meta only balances spend inside a Sunday–Saturday week, being behind late in the month usually means the underspend is locked in.

How many days should I use to budget a month of Facebook ads?

Use the real calendar: daily budget = monthly target ÷ actual days in the month. Dividing by 30.4 is a Google Ads habit — on Meta it overshoots 31-day months by about 2% and undershoots February by nearly 8%, because Meta paces to calendar days and weeks, not to a 30.4-day average.

Adscriptly Signals

Your cost per result is only as real as your conversion data.

Meta optimizes toward whatever you report back. Adscriptly sends qualified outcomes — scored leads, real calls, closed deals — to your ad platforms server-side, so the algorithm buys results that actually make you money.