OOH campaign return.

Billboard ROI is notoriously hard to measure because attribution is tricky. This calculator uses impressions × conversion rate × customer value vs campaign cost. Billboard conversion rates are low (typically 0.05-0.2% of impressions) but impression volumes are high, so total can work if customer value is meaningful.

5,000/month rental × 3 months = 15,000 cost. 500,000 impressions/month × 3 = 1.5M impressions. At 0.1% conversion × 300 customer value = 1,500 conversions × 300 = 450k revenue. ROI 2,900%. This illustrates the potential but also why attribution matters - if you credit billboard for any new customer in the area during the period, ROI looks fantastic; with clean attribution (new customers mentioning the billboard), ROI is usually 100-500%.

Billboards work best for local businesses with high-ticket products (estate agents, dentists, legal firms) where one new customer pays back. They work poorly for ecommerce because the conversion requires the viewer to remember and search online. Online ad channels are better for ecommerce because attribution closes the loop.

A worked example

Try the defaults: monthly rental cost of 5,000, monthly impressions of 500,000, conversion rate of 0.1%, avg customer value of 300. The tool returns 2,900.00%. You can adjust any input and the result updates as you type — no submit button, no reload. That's the real power here: seeing how sensitive the output is to one or two assumptions.

What moves the number most

The result responds to Monthly Rental Cost, Monthly Impressions, Conversion Rate %, Avg Customer Value, and Campaign Months. Frequency and unit price pull the total in different directions. The biggest surprise for most people is how small recurring amounts compound into large annual figures — that's where this calculation earns its keep.

The formula behind this

Total impressions = monthly × months. Conversions = impressions × conversion %. Revenue = conversions × value. ROI = (revenue - cost) ÷ cost × 100. Everything the calculator does is shown in the formula box below, so you can check the math against your own spreadsheet if you want.

What the score tells you

Headline financial numbers — income, savings, debt — each tell part of the story. This calculation stitches several together into a single read you can track over time. The value is in the direction, not the absolute number.

What this doesn't capture

The score is a composite of the inputs you provide. Life context — job security, family obligations, health, housing — doesn't appear in the math but shapes the real picture. Use the number as a prompt, not a verdict.