Free calculator
How much do missed calls cost your business each month?
Pick your industry and enter four numbers to estimate the monthly revenue that slips away through missed calls. The defaults are example assumptions, and the average ticket is left blank for industries with no number to base it on. Replace them with your own numbers for an accurate result.
Industry
Count one week from your phone call log, or from your carrier app or Smart Call stats for a store landline, then multiply by 4.
Leave out sales calls and wrong numbers. If unsure, call back your missed calls for a week.
Customers you missed who go elsewhere. High for booking inquiries, low for regulars checking in.
Example per party visit. With many group bookings, one call can mean several guests.
Estimated monthly loss
You may be missing about ₩540,000 a month right now
60 calls × 50% × 60% × ₩30,000
- Real customers missed
- about 18
- Over a year
- ₩6,480,000
Callva Pro at ₩59,000 a month (VAT excluded) is 11% of that amount.
Answering alone does not reduce the loss. It drops only when answered calls end in a booking or an intake.
This is an estimate based on the assumptions you entered. It does not guarantee revenue or savings.
Where do the calculator defaults come from?
Of the four calculator defaults, only the missed-call count comes from a published measurement. The other three are assumptions. The average ticket has a default only for three items whose numbers appear in the blog post: restaurants, clinics and professional services. Every other industry, including law, labor, patent and tax offices, starts blank, and you enter your own to see an amount.
| Item | Default | Basis |
|---|---|---|
| Missed calls per month | 60 calls | Example scaling one published store measurement (15 missed calls a week, 2025-06) to four weeks |
| Share that are real customers | 50% | Assumption |
| Share who never call back | 60% | Assumption (no verifiable measurement found) |
| Average ticket | Restaurants, clinics and professional services only | Example values from the blog post (restaurants ₩30,000, clinics and professional services ₩100,000). Other industries are left blank because there is no industry-specific number to base them on |
FAQ
Missed call calculator FAQ
Call handling by industry
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