Free Marketing Budget Calculator
Estimate how much you may need to spend on marketing to support a revenue target. Calculate your marketing budget using a target ROAS or target customer acquisition cost and understand the customers, acquisition cost and profitability assumptions behind the estimate.
Free to use • No signup required • Results based on your inputs
Calculate Your Marketing Budget
Enter your marketing goals and choose whether you want to calculate your budget using target ROAS or target CAC.
How Is Marketing Budget Calculated?
Target ROAS Formula
Marketing Budget = Marketing Revenue Target ÷ Target ROAS
Required Customers
Marketing Revenue Target ÷ Average Revenue per Customer
Implied CAC
Marketing Budget ÷ Required Customers
The ROAS method estimates how much marketing spend is required if you already know the return on ad spend you want to achieve.
Target CAC Formula
Required Customers
Marketing Revenue Target ÷ Average Revenue per Customer
Marketing Budget = Required Customers × Target CAC
Estimated Marketing Spend Ceiling
Revenue Target × (Gross Margin % − Desired Margin After Marketing %)
The CAC method estimates the budget required based on how much you are willing to spend to acquire each new customer. The spend ceiling considers the gross margin and desired margin you enter. It does not automatically account for taxes, overhead, financing costs or other business expenses.
Example Calculation
- Revenue Target: ₹6,00,000
- Average Revenue per New Customer: ₹15,000
- Target ROAS: 4.0x
- Gross Margin: 60%
- Desired Margin After Marketing: 20%
- Required Customers: ₹6,00,000 ÷ ₹15,000 = 40 customers
- Marketing Budget: ₹6,00,000 ÷ 4 = ₹1,50,000
- Implied CAC: ₹1,50,000 ÷ 40 = ₹3,750
- Estimated Marketing Spend Ceiling: ₹6,00,000 × (60% − 20%) = ₹2,40,000
Estimated Marketing Budget
₹1,50,000
How to Use Your Marketing Budget Estimate
Your calculated budget is a planning estimate based on the revenue, customer value and efficiency target you provide. Use it as a starting point for campaign planning rather than as a guaranteed spending recommendation.
Compare the estimate with your historical campaign performance, available cash flow, channel mix and acquisition costs before setting a final marketing budget.
If your business already has reliable campaign data, use historical ROAS or CAC instead of an industry-wide benchmark whenever possible.
What Factors Affect Your Marketing Budget?
Revenue Goals
Higher marketing-attributable revenue goals generally require either more marketing investment or stronger campaign efficiency.
Customer Value
Businesses with higher average revenue per new customer may be able to support higher acquisition costs while still meeting commercial goals.
Target ROAS
A higher target ROAS means the business expects more revenue from each unit of marketing spend, which produces a lower estimated budget for the same revenue target.
Customer Acquisition Cost
When planning using CAC, the marketing budget depends directly on the number of customers required and the acceptable cost of acquiring each customer.
Gross Margin
Revenue alone does not determine profitability. Gross margin helps indicate how much revenue remains available to cover marketing and other business expenses.
Should You Plan Marketing Budget Using ROAS or CAC?
Use the Target ROAS method when your primary objective is to connect marketing spend with attributable revenue.
Use the Target CAC method when you know approximately how much your business can afford to spend to acquire a new customer.
Businesses with reliable historical data may compare both methods to understand whether their revenue and acquisition assumptions are aligned.
| Method | Best for | Primary question |
|---|---|---|
| Target ROAS | Revenue-focused campaign planning | How much can I spend to generate my revenue target? |
| Target CAC | Customer acquisition planning | How much can I spend to acquire the customers I need? |
Marketing Budget Calculation Example
Suppose a business wants marketing to generate ₹6,00,000 in monthly revenue and expects a 4.0x ROAS. Dividing ₹6,00,000 by 4 gives an estimated monthly marketing budget of ₹1,50,000.
If the average revenue per new customer is ₹15,000, the revenue target represents approximately 40 new customers. The implied acquisition cost at this budget is approximately ₹3,750 per customer.
Marketing Budget Calculator FAQs
What is a marketing budget calculator?
A marketing budget calculator estimates how much a business may need to allocate to marketing based on goals such as attributable revenue, target ROAS or target customer acquisition cost.
How do I calculate a marketing budget using ROAS?
Divide the revenue you want marketing to generate by your target ROAS. For example, a ₹4,00,000 revenue target at a 4.0x target ROAS produces an estimated marketing budget of ₹1,00,000.
How do I calculate a marketing budget using CAC?
Estimate the number of new customers required to reach your revenue goal, then multiply that number by your target customer acquisition cost.
What is a good marketing budget?
There is no single marketing budget that is appropriate for every business. The appropriate amount depends on revenue goals, margins, customer value, acquisition costs, growth targets and historical campaign performance.
Should I use ROAS or CAC to plan my marketing budget?
ROAS is useful when planning around attributable revenue, while CAC is useful when planning around the cost of acquiring customers. Businesses with reliable data can compare both approaches.
Are the calculator results guaranteed?
No. The results are mathematical estimates based on the assumptions you enter. Actual campaign performance can vary because of factors such as competition, audience quality, advertising costs, conversion rates, creative quality and market conditions.
Marketing Budget Calculator Disclaimer
This calculator provides planning estimates based solely on the values you enter. Results are not financial advice, revenue guarantees or predictions of actual campaign performance. Real marketing results may vary based on market conditions, channels, competition, tracking accuracy, pricing, conversion rates and other business factors.
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