Ad Budget Calculator

prakash gohel

5 Jul, 2025

Ad Budget & ROAS Calculator | Free & Fast Online Tool

Ad Budget Calculator - Free Tool

Instantly forecast your advertising results. Adjust the inputs below to see how changes impact your potential profit.

Campaign Inputs

Monthly Ad Budget

Cost Per Click (CPC)

Conversion Rate

Average Order Value (AOV)

Performance Forecast

Daily Budget

Weekly Budget

Est. Clicks

Est. Conversions

Cost Per Acq. (CPA)

$0.00

Total Revenue

Return On Ad Spend (ROAS)

0.00x

Net Profit

My Ad Money Was Disappearing. So I Build This Tool.

I remember my first time with ads. It was for a small project I make. I was so excited. I put $200 into Facebook ads. I think, "Wow, so many people will come!" Two days later, the money is all gone. Poof. And I have maybe one or two sales. I feel so bad. I think, "Where did my money go?" It was like putting money into a black hole. I had no idea about numbers. CPC? Conversion Rate? ROAS? It was all big, scary words for me.

I searched online for help. I found many tools. But they were confusing. So many buttons. So many options. Or they were too simple and not tell me what I need to know. Like, what is my real profit? Is my ad working good or bad?

So, I decided I will make my own tool. A tool for people like me. People who are not marketing experts but want to grow their thing. I wanted something simple, but powerful. Something that shows you the whole story of your ad money, from start to finish. This is how I make this Ad Budget Calculator. It is my tool that I use every day, and now I give it to you. I hope it helps you stop feeling lost and start feeling smart about your ads.

What is This Ad Budget Calculator?

It is not just a calculator. It is like a map for your ad money. You put in some basic numbers about your plan, and it shows you where you will go. It helps you see the future, a little bit. Before you spend even one dollar, you can play with the numbers and see what might happen.

Will I make money?
How many clicks can I get?
How much does it really cost to get one customer?

This tool answers these questions. And it works for everything. You can use it as a google ads budget calculator, a facebook ad budget calculator, or even a TikTok ad budget calculator. The numbers change for each place, but the tool works the same. It is a universal map for your ad adventure.

Let’s Understand The Inputs (Your Part!)

This is the information you need to give the tool. Don’t worry, it is easy. I will explain each one, super simple.

1. Monthly Ad Budget

This is the first, most easy one. How much money you want to spend on ads for one month?

I remember I was scared to pick a number. Is $100 too small? Is $1000 too big? The beautiful thing about this tool is you can use the slider. Just move it left and right. You can see how spending $100 is different from spending $1000. It is not just about spending more. It is about spending smarter.

When you are starting, maybe you start small.

Let's say 300 for the month. Put that in the box.This is your total risk.The calculator will immediately show you your Daily Budget and Weekly Budget.This is so helpful!Because sometimes you think" 300 for the month. Put that in the box.

This is your total risk.The calculator will immediately show you your Daily Budget and Weekly Budget.This is so helpful! Because sometimes you think" 300 is a lot", but then you see it's only $10 per day. It makes it feel less scary and more easy to control. You can think, "Okay, I can spend $10 today to learn."

This works for any platform. If you use it as a youtube ad budget calculator, maybe you want to spend more because video ads can cost more. If you use it as a simple banner ad calculator, maybe you spend less. You decide your total budget, and the tool does the math for you.

2. Cost Per Click (CPC)

Okay, this one sounds a bit technical, but it is not. CPC is just the price for one person to click your ad.

Imagine you have a shop on a street. Every time someone opens the door and walks in just to look, you pay a small fee. That is CPC. They have not bought anything yet. They are just looking.

How do you find this number? Every ad platform tells you!

For Facebook/Instagram: Go to your Ads Manager. Look at past campaigns. It will show you the CPC. If you are new, you can google "average CPC for [your industry] on Facebook". Maybe it is $0.80. Maybe it is $2.50.
For Google Ads: Same thing. Your Google Ads dashboard shows you CPC for your keywords. Some keywords are very cheap. Some, like "car insurance", are super expensive. So you must know your industry.
For LinkedIn: LinkedIn can be more expensive. CPC can be $5 or more! Because you are reaching professionals. So when you use this as a linkedin ad budget calculator, be realistic with your CPC.
For TikTok: TikTok can be cheaper sometimes. People are there for fun. So your ad needs to be fun too. The CPC might be lower.

Put the number you find in the "Cost Per Click" box. Now, the magic starts. The tool will instantly take your total budget and divide it by your CPC. This shows you the "Est. Clicks". You can see right away, "Okay, with my $300 budget and $1.50 CPC, I can get 200 people to visit my website." This is powerful knowledge!

3. Conversion Rate (%)

This is maybe the most important number you must know about your business.

A "conversion" is when a visitor does what you want them to do. For an online store, a conversion is a sale. For a service business, a conversion could be someone filling out a contact form.

The Conversion Rate is how many people convert, out of all the people who visit. So, if 100 people click your ad and visit your website, and 2 people buy something, your conversion rate is 2%.

This number is about YOUR website, not just the ad. Is your website easy to use? Is it fast? Is the price good? All these things affect your conversion rate.

If you don't know your conversion rate, a good place to start is 1% or 2%. Most websites are in this range. But you should find your real number. If you have a website, tools like Google Analytics can show you this.

When you put this number in the calculator, you see the next step in the journey. The tool calculates "Est. Conversions". So you see: "Okay, 200 people visit, and my conversion rate is 2%. That means I can expect 4 conversions (sales)."

Now you have a real goal! You are not just guessing. You are making a smart plan.

4. Average Order Value (AOV)

This one is fun. It is the average amount of money each customer spends with you in one order.

It is simple to calculate. Take your total sales money from last month, and divide it by the number of orders you had.

Example: You sold $5,000 worth of products. You had 100 orders.
$5,000 / 100 = $50.
Your Average Order Value is $50.

Why is this important? Because it tells you how much each conversion is worth. If your AOV is high, you can afford to spend more to get a customer. If your AOV is low, you need to be very careful with your ad spend.

When you put your AOV in the calculator, the final pieces of the puzzle come together. The tool can now calculate your Total Revenue and your Net Profit.

Understanding The Results (The Fun Part!)

Now that you have put in your numbers, the right side of the tool comes alive. This is where you see if your plan is good or if it needs changes.

Est. Clicks & Est. Conversions

We talked about this. It is the first result of your budget. It shows you the amount of traffic and the number of customers you might get. This is your goal.

Cost Per Acquisition (CPA)

This is a super, super important number. It means "Cost Per Acquisition". In simple words: How much money did you spend to get ONE new customer?

The tool calculates this for you. It takes your total ad budget and divides it by the number of conversions.

If you spent $300 and got 4 customers, your CPA is

 $75. ($

300 / 4 = $75).

Now you have to ask yourself: Is it okay to spend $75 to get one customer? This depends on your AOV. If you sell a product for $150, and it only costs you $40 to make, then paying $75 to get that customer is great! You are making profit. But if you sell a product for $80, and it costs $40 to make, then paying $75 for a customer means you are losing money on each sale.

Seeing your CPA clearly helps you understand your business health.

Total Revenue

This is a happy number to look at. The tool multiplies your number of conversions by your Average Order Value.

4 Conversions x $150 AOV = $600 Total Revenue.

This is the total money your ads brought in. But wait! This is not your profit. Many people make this mistake. They see $600 in revenue from $300 in ads and think they made $300. This is not true yet.

Return On Ad Spend (ROAS)

This is a fancy term for a simple idea: For every $1 you put into ads, how many dollars do you get back?

The tool calculates this for you.
$600 Revenue / $300 Ad Spend = 2.

Your ROAS is "2x". This means for every $1 you spent, you got $2 back. This is good! In the tool, this number will probably be green. Green is for good!

If your revenue was only $150 from $300 ad spend, your ROAS would be 0.5x. You got $0.50 back for every $1 you spent. You lost money. The tool will show this number in red. Red is for warning!

ROAS is the best way to quickly see if an ad campaign is healthy. It's a standard number that all marketers use. Whether you are doing a google ads budget calculator plan or a facebook ad budget calculator plan, a 2x ROAS is okay, a 4x ROAS is great, and a 10x ROAS is amazing.

Net Profit

This is the final, most important number. The truth.

The tool takes your Total Revenue and subtracts your Ad Budget.
$600 Revenue - $300 Ad Budget = $300 Net Profit.

This is your real profit, before the cost of your product. If this number is positive and green, you are doing great. Your ad campaign is working. It is putting more money in your pocket than it is taking out.

If this number is negative and red, your campaign is losing money. You must change something.

How to "Play" With The Calculator To Win

This is the best part. The tool is instant. You don't need to press a "calculate" button. Just change a number, and everything updates. This is where you become a smart strategist.

Scenario 1: Your profit is negative.
What can you do?

Can you lower your CPC? Try writing a better ad. Or targeting a different audience. Put a lower CPC in the tool and see how it affects your profit.
Can you increase your Conversion Rate? This is the most powerful one. Maybe make your website faster. Or add better photos. Change the Conversion Rate in the tool from 2% to 3%. Look at the Net Profit. Wow! A small change in conversion rate can have a huge effect on profit.
Can you increase your AOV? Can you offer a bundle? Or free shipping over a certain amount? Put a higher AOV in the tool and see the magic.

By playing with these numbers, you are not just using a calculator. You are building a business plan. You find out what is most important for you to work on.

A Tool for Every Platform

I say this before, but it is important. This is one tool for all your needs.

When you plan for Facebook or Instagram, you know people are scrolling for fun. Maybe your conversion rate is a little lower, but your CPC can also be low if your ad is very engaging. Use it as an Instagram ad budget calculator by putting in numbers that feel right for that platform.
When you plan for Google Ads, people are actively searching for your product. So your conversion rate can be higher! But keywords can be competitive, so your CPC might be higher too.
When you use it as a TikTok ad budget calculator, your ad must be a fun video. CPC can be very low if your video goes viral! But maybe the AOV is lower because people make smaller impulse buys.
When you plan for LinkedIn, you are selling to businesses. The AOV is probably much higher. The conversion rate might be lower because it takes more to convince a business. And the CPC will be high. The calculator helps you see if this expensive traffic is worth it.

The tool does not change. Your understanding of the platform changes. And you put that understanding into the tool.

This calculator gives you clarity. It takes the big scary cloud of "ad spending" and turns it into a simple, clear path. It helped me stop wasting money and start investing it. I hope it can do the same thing for you. Go ahead, play with it. Find your winning numbers.

My Ad Budget Calculator helps you plan your ad spend and see potential profit. It's easy for any platform.