What is a good budget for my audience size, how many ads do I need and what about frequency?

Figuring out your audience size relative to your budget can seem like a bit of a puzzle. If your audience is too large for your monthly budget, you might not reach as many people as you'd hope and don't create memory recall.

If you're a startup and targeting a fresh audience, I recommend a frequency range of 10 per month, and maximising your audience penetration (target reach) to make sure you are seen.

Always test and update creatives every couple of months to keep things fresh and optimize your CTR.

Enter your total audience size as in your LinkedIn campaign manager.
Pull up last month’s data for this audience and find the Cost Per Impression (CPM). A CPM on LinkedIn currently hovers around 30$ within the business/tech industry.
I recommend you keep this between 70-80% = 0.7-0.8 for meaningful awareness per month. The higher the number the higher the ability to convert the 5% of buyers who are in-market right now and reach the 95% of buyers who aren’t.
How long it takes to achieve total audience penetration? Velocity affects the reach per month. Recommendation: TOFU = 3 months. MOFU = 2 months. BOFU = 1 month.
How often a individual sees your ads per month. A frequency between 8–10 per month is a good starting point, depending on how known your brand is to the audience.