Ad platforms use their own vocabulary for how spending and performance get measured. None of it is complicated once it's explained plainly — and you need to know it before you can set a sane budget.
The four terms you'll see everywhere
- Impression — one time your ad was shown on someone's screen. It doesn't mean they noticed it, just that it loaded.
- CPM (cost per mille) — what you pay per 1,000 impressions. If a platform's CPM is $10, showing your ad 1,000 times costs $10.
- CTR (click-through rate) — the percentage of people who saw your ad and clicked it. A 1% CTR means 1 in 100 viewers clicked.
- Conversion rate — the percentage of those clicks that turned into an actual sale, lead, or sign-up. This is the number that ultimately decides whether an ad was worth running.
Put together: your budget buys impressions, a fraction of those impressions become clicks, and a fraction of those clicks become customers. Every platform's CPM is different, which means the same budget buys very different amounts of reach depending on where you spend it.
What a realistic budget looks like
There's no universal "right" ad budget — it depends on your margins, your sales cycle, and how expensive your platform's CPM is. What matters when you're starting out is picking a number you can commit to for at least 4–6 weeks, since most ad accounts need that long to gather enough data to optimize properly. A budget that's too small to generate any clicks or conversions won't teach you anything, win or lose.
See what your budget actually buys
Platforms don't all cost the same. A platform like LinkedIn can cost 5–10x more per impression than Facebook or TikTok, because you're paying for far more precise targeting. Use the calculator below to see how far a given monthly budget goes on each platform.
Tool: Ad Budget Calculator
Estimated results
66,667
est. impressions on Facebook
71,429
est. impressions on Instagram
55,556
est. impressions on TikTok
Based on typical 2025–2026 benchmarks: Facebook ~$7.50 and Instagram ~$7 CPM (WebFX), TikTok ~$9 CPM (WebFX), LinkedIn ~$70 CPM for broad B2B targeting (The Smarketers, 2026), X ~$7 CPM (eMarketer/AutoTweet, 2026), and YouTube ~$0.20 per view (WebFX). YouTube is priced per view rather than per impression. Illustrative only — your actual cost depends on industry, targeting, and competition.
Planning the content side of your budget
Everything above covers paid media spend — what you pay the platform to show your ad. You'll separately need content to put in front of that spend (and, longer term, free organic posting to support it).