Facebook Advertising Calculator – Estimate Clicks, Impressions, and Conversions

Running Facebook ads can be confusing if you're unsure what return you’ll get from your budget. Our Facebook Advertising Calculator helps you estimate daily spend, total clicks, impressions, conversions, cost per conversion, and ROAS based on your inputs like budget, CPC, and conversion rate.

Formulas Used

1. Daily Budget

The daily budget is simply the total budget divided by the number of campaign days.

Formula:

$\text{Daily Budget}=\frac{\text{Total Budget}}{\text{Campaign Duration}}$

2. Total Clicks

This estimates how many clicks your ad will receive based on your CPC (Cost Per Click).

Formula:

$\text{Total Clicks}=\frac{\text{Total Budget}}{\text{Average CPC}}$

3. Estimated Impressions

Assuming a 2% click-through rate (CTR), this gives you the number of impressions your ad will generate.

Formula:

$\text{Impressions}=\frac{\text{Total Clicks}}{0.02}$

4. Total Conversions

Using your conversion rate, this shows how many people may convert (buy, sign-up, etc.)

Formula:

$\text{Conversions}=\text{Total Clicks}\times \left(\frac{\text{Conversion Rate}}{100}\right)$

5. Cost Per Conversion

Shows the cost for each successful conversion.

Formula:

$\text{Cost Per Conversion}=\frac{\text{Total Budget}}{\text{Conversions}}$

6. ROAS (Return on Ad Spend)

Assuming an average order value of $50, the ROAS is:

Formula:

$\text{ROAS}=\frac{\text{Conversions}\times 50}{\text{Total Budget}}$

7. Break-even CPA (Cost Per Acquisition)

This simplifies the average cost you can afford per conversion to break even.

Formula:

$\text{Break-even CPA}=\frac{\text{Total Budget}}{\left(\frac{\text{Total Budget}}{50}\right)}$

Example

Let’s say you run a Facebook ad campaign with these values:

• Campaign Budget: $1,000
• Campaign Duration: 10 days
• Average CPC: $0.50
• Conversion Rate: 5%

Now let’s calculate:

1. Daily Budget:

$\frac{1000}{10}=100\text{ (Daily)}$

2. Total Clicks:

$\frac{1000}{0.5}=2000\text{ clicks}$

3. Impressions:

$\frac{2000}{0.02}=100,000\text{ impressions}$

4. Conversions:

$2000\times \frac{5}{100}=100\text{ conversions}$

5. Cost Per Conversion:

$\frac{1000}{100}=10$

6. ROAS:

$\frac{100\times 50}{1000}=5x$

7. Break-even CPA:

$\frac{1000}{1000/50}=50$

Frequently Asked Questions (FAQs)

1. What is a good ROAS for Facebook ads?

A ROAS of 4x to 10x is considered strong, depending on the industry and product margins.

2. How accurate is the Facebook Advertising Calculator?

It provides estimates based on your inputs. Actual performance may vary due to many factors like audience targeting, ad creatives, and bidding.

3. What if I don’t know my conversion rate?

You can use industry benchmarks (e.g., 2%-5%) or review past campaign performance.

4. Is 2% CTR realistic?

Yes, it’s a standard assumption. However, your actual CTR could be higher or lower depending on ad relevance and targeting.