How do I calculate the ROI of an AI receptionist?

Use this formula: Missed calls per month x average job value x conversion rate = monthly lost revenue. Compare that to the AI receptionist cost ($49-149/month). Most businesses see 10-50x ROI.

How many calls does a typical small business miss?

Studies show small businesses miss 20-40% of incoming calls. For a business receiving 200 calls per month, that is 40-80 missed calls. After hours, the miss rate approaches 100% without an answering solution.

What is the average conversion rate from answered calls?

Industry averages range from 25-50%. Service businesses (plumbers, HVAC, electricians) tend toward 40-50% because callers often have immediate needs. Professional services (lawyers, accountants) average 25-35%.

How does AI receptionist cost compare to a human receptionist?

A full-time receptionist costs $30,000-45,000/year ($2,500-3,750/month). An AI receptionist costs $49-149/month — a 95-98% cost reduction. The AI also works 24/7 without overtime, sick days, or benefits.

How fast does an AI receptionist pay for itself?

For most businesses, the AI pays for itself within the first week. If your average job is worth $200 and the AI captures just one additional job per week, that is $800/month in new revenue against a $99/month cost.

CalculatorLast updated: June 2026

AI Receptionist ROI Calculator

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The formula

MONTHLY LOST REVENUE

Missed calls/month × Avg job value × Conversion rate

ROI by industry

Plumbing company (3 technicians)

Missed calls/month: 32
Average job value: $320
Conversion rate: 45%
Monthly lost revenue: $4,608
AI receptionist cost: $99/mo
ROI: 46x return

Dental practice (2 dentists)

Missed calls/month: 45
Average appointment value: $180
Conversion rate: 35%
Monthly lost revenue: $2,835
AI receptionist cost: $99/mo
ROI: 28x return

Law firm (solo attorney)

Missed calls/month: 15
Average case value: $2,500
Conversion rate: 25%
Monthly lost revenue: $9,375
AI receptionist cost: $149/mo
ROI: 62x return

Cost comparison: AI vs. alternatives

Voicemail: Free, but 62% of callers never call back. Effective cost: all the revenue you lose.
Answering service: $1-2/minute. At 200 calls/month averaging 3 minutes: $600-1,200/month.
Part-time receptionist: $2,000-3,000/month. Only covers specific hours.
AI receptionist (Fonio): $49-149/month. 24/7, unlimited calls, no per-minute charges.

FAQ: AI receptionist ROI

How do I calculate ROI?

Missed calls x average job value x conversion rate = lost revenue. Compare that to AI cost ($49-149/month).

How many calls does a small business miss?

Small businesses miss 20-40% of incoming calls. After hours, the miss rate approaches 100% without an answering solution.

How fast does it pay for itself?

Most businesses see the AI pay for itself within the first week. One captured job at $200+ covers a month of Fonio.

AI vs. human receptionist cost?

A human costs $30,000-45,000/year. Fonio costs $588-1,788/year. That is a 95-98% cost reduction with 24/7 coverage.

What conversion rate should I use?

Service businesses: 40-50%. Professional services: 25-35%. When in doubt, use 30% for a conservative estimate.

Stop the revenue leak

One captured call pays for a month

Fonio starts at $49/month and captures calls 24/7. Most businesses see ROI within the first week.

Try Fonio with code PARTNER-ZPKRQ

No long-term contract. Free trial available.

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