Stop guessing your ad budget. Enter your numbers and find out exactly what you need to spend to hit your revenue goal.
Most store owners pick a number out of thin air. They start with RM 500 because it "feels right" or double last month's spend because things "seemed to work." That is not a strategy. That is gambling.
Your ad budget should be reverse-engineered from your revenue target. Here is the math:
Monthly Ad Budget = Revenue Target ÷ Target ROAS
CPA = CPC ÷ (Conversion Rate / 100)
Projected Orders = Monthly Budget ÷ CPA
If your revenue target is RM 40,000 and your target ROAS is 4x, you need a RM 10,000 monthly ad budget (about RM 333/day). The calculator above runs these numbers instantly so you can plan with confidence instead of hope.
Five numbers drive everything. Change any one and your required budget shifts:
The lever most store owners ignore is conversion rate. Doubling your conversion rate halves your CPA and halves the budget you need. Before you increase spend, fix your landing pages.
There is no universal answer, but there are smart starting points:
The biggest mistake? Spending too little. Facebook's algorithm needs roughly 50 conversion events per week per ad set to optimize properly. If your CPA is RM 50 and you are only spending RM 30/day, you are starving the algorithm. Use this calculator to find the minimum budget that gives Facebook enough data to work with.
Hitting your revenue target is only half the story. A 2x ROAS means you spent RM 1 to make RM 2 in revenue. But after product costs, shipping, and overhead, is there anything left?
Use our break-even ROAS calculator to find the minimum ROAS you need to cover all costs. Then set your target ROAS above that floor. If your break-even ROAS is 3x, aim for at least 4x to build in a profit margin.
And if you want to reduce your dependency on paid traffic entirely, investing in ecommerce SEO builds organic traffic that does not cost you per click. Paid and organic working together is how profitable stores scale.
Your budget should be reverse-engineered from your revenue target. Divide your monthly revenue goal by your target ROAS to get the minimum ad spend. For example, if you want RM 40,000 in revenue and target a 4x ROAS, you need at least RM 10,000/month in ad spend. Start with a testing budget of RM 50-100/day for 2 weeks before committing to larger budgets.
Malaysian ecommerce Facebook Ads typically see CPCs between RM 1.50 and RM 5.00, depending on your niche and audience targeting. Fashion and beauty tend to be lower (RM 1.50-3.00), while B2B or high-ticket products can be RM 4.00-6.00+. The key is not just CPC — it is CPC relative to your conversion rate. A RM 5 CPC with a 4% conversion rate outperforms a RM 2 CPC with a 0.5% conversion rate.
The average ecommerce conversion rate from Facebook Ads is 1-3%. Well-optimised Shopify stores with strong landing pages and compelling offers can hit 3-5%. If you are below 1%, focus on your landing page experience before increasing ad spend. The calculator uses 2% as a default — adjust based on your actual data from Meta Ads Manager.
Your actual ROAS is determined by the relationship between your CPC, conversion rate, and AOV — not just your budget. If your CPC is too high or conversion rate too low, the math will not support your target ROAS regardless of how much you spend. The calculator shows you this gap so you can fix the inputs (better ads, better landing pages) rather than just throwing more money at the problem.
Facebook needs roughly 50 conversion events per ad set per week to optimise properly. If your CPA is RM 50, you need at least RM 350/week (RM 50/day) per ad set. Spending less starves the algorithm and leads to inconsistent results. Use this calculator to find your CPA, then multiply by 50 to get the minimum weekly budget per ad set.
Answer a quick set of multiple-choice questions and we'll pinpoint your biggest revenue leaks — and whether we can help plug them.
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