How much do Facebook and Instagram ads cost, and how to set a budget

Meta (Facebook and Instagram) does not sell ads at a fixed price. You set a budget and a goal, and the platform shows your ads in an auction. What you actually pay per customer depends much more on your offer, your creatives and your measurement than on the platform.

What decides the cost

Your goal. Optimising for purchases costs more per result than optimising for clicks, but brings buyers instead of browsers.
Your audience and competition. Some audiences are expensive because many advertisers want them.
Your creatives. Ads people engage with get shown more cheaply. Weak creatives are the most common reason for high costs.
Your conversion rate on the website.
Season. Before holidays, prices usually rise because more advertisers compete.

How to set a budget

Know what a customer may cost: customer acquisition cost.
Give each campaign enough budget to get a reasonable number of conversions per week, otherwise the algorithm cannot learn.
Start with fewer campaigns and bigger budgets rather than many small ones.
Scale winners in steps of about 20 % every few days, not by doubling overnight.

Settings that waste money

Optimising for the wrong event, for example link clicks for an e-shop that needs purchases.
Broken or duplicated events. If “add to cart” fires twice, the platform learns from bad data.
Too many ad sets with tiny budgets, all stuck in the learning phase.
No frequency control in remarketing: the same people see the same ad a dozen times.
An expired card or a spending limit that silently stops delivery. Check billing.

Creatives matter more than targeting

On Meta, broad targeting with strong creatives often beats narrow targeting with weak ones. Test several angles: the problem your product solves, the product in use, a customer’s point of view, the offer. Refresh creatives when frequency climbs and results fall.

How to know if it pays off

Compare the cost per new customer from Meta with what a customer brings you. Use your shop data for purchases, not only the numbers in Ads Manager, because platforms tend to count some of the same sales as other channels.

If you want us to look at your Meta account, it is part of the growth audit.