🎪Event Marketing ROI Calculator

Calculate ROI and ROAS for your offline events using cost, attendees, conversion rate, and order value

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How to Use the Event Marketing ROI Calculator

This calculator measures the investment efficiency of offline marketing events using ROI and ROAS. ROI = (Conversion Revenue − Event Cost) ÷ Event Cost × 100, and ROAS = Conversion Revenue ÷ Event Cost.

Conversion Revenue = Attendees × Conversion Rate × Average Order Value. For example, 200 attendees at 10% conversion and $80 AOV generates $1,600 revenue. If your event cost $5,000, ROI is −68% — a loss. To break even, you'd need to raise AOV, improve conversion rate, or reduce event cost.

Entering a Customer LTV shows long-term ROI by projecting repeat purchase value per converted customer. If your goal is acquiring loyal repeat buyers, LTV-based ROI is a more accurate measure of true event value.

Frequently Asked Questions

What should be included in event cost?

Include venue rental, staff/personnel, printed materials, catering, giveaways, transportation, and any other direct expenses. Overhead costs like employee salaries can be included optionally based on your accounting approach.

Is ROAS below 1x always a failure?

Not necessarily. If your event builds significant brand awareness, generates leads, or acquires high-LTV customers, a below-breakeven direct ROAS can still be strategically worthwhile. Use LTV-based ROI to assess the full picture.