SMS ROI Calculator
Model the revenue, spend and ROI of an SMS campaign — free and instant. Built on the same engine Zefir uses to run SMS for 300+ ecommerce brands.
Calculate your SMS ROI
Enter your audience, funnel and costs — results update instantly.
How it works
Enter your audience & costs
Add messages sent, pick a country for segment cost, and set segments per message.
Set your funnel rates
Adjust delivery, click and conversion rates and your average order value.
See your ROI
Instantly see revenue, spend, net profit, ROI and ROAS. Nothing to sign up for.
Frequently asked questions
How is SMS ROI calculated?
Revenue comes from messages sent × delivery × click × conversion × average order value. Spend is messages sent × segments per message × cost per segment. ROI = (revenue − spend) ÷ spend, and ROAS = revenue ÷ spend.
What is a segment?
SMS messages are billed in segments. A plain-text (GSM) message fits ~160 characters per segment; longer messages or special characters use more segments, raising cost. Set segments per message to match your typical send.
Why does country matter?
Carrier fees vary by country. Selecting a country sets a typical per-segment cost, which you can override with your own rate.
Do you store my numbers?
No. Everything runs in your browser — nothing you enter is sent or stored.
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Turn these numbers into revenue
See how leading ecommerce brands turn SMS into a profitable revenue channel with Zefir — compliant lists, managed sending, measured to the dollar.
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