Free Tool
VoIP Savings Calculator
Find out how much your organization could save by switching from traditional phone lines or on-premise PBX to cloud VoIP — using published industry benchmarks, not vendor estimates.
Your current setup
Your estimated savings
Based on your inputs and published industry benchmarks
Cost breakdown
Savings estimates use industry benchmarks from FCC, Gartner, Metrigy (2023–2025). Results are illustrative — actual savings depend on your carrier contracts and usage.
How it works
Where the savings actually come from
VoIP's cost advantage is structural — it eliminates cost layers that PSTN and on-premise PBX carry by design.
No per-line hardware
Traditional PBX charges $100–$400 per line for hardware and installation. Cloud VoIP uses existing internet — no physical equipment per seat.
Source: FCC Business Telephone Service Report 2024
40–80% cheaper international calls
VoIP routes international calls over the internet rather than the PSTN. Per-minute rates are typically 40–80% lower than standard carrier international rates.
Source: Gartner Communications Market Guide 2024
Near-zero IT maintenance
On-premise PBX requires ongoing IT time for moves, adds, changes, and firmware. Cloud VoIP admin is a browser interface — no on-site work, no maintenance contracts.
Source: Metrigy UCaaS & CCaaS Research 2024
No annual hardware maintenance
PBX hardware maintenance contracts average 15–20% of hardware value annually. Cloud VoIP has no hardware to maintain — updates are handled by the provider.
Source: CompTIA IT Industry Outlook 2024
Lower cost per user at scale
Traditional systems charge the same per line regardless of usage. Cloud VoIP per-user pricing drops significantly at higher seat counts — often $15–30/user versus $50–80/line for equivalent PSTN service.
Source: IDC Cloud Communications Market Report 2024
Eliminated downtime costs
On-premise PBX failures require on-site repair — average downtime of 4–8 hours and $150–$500/hour in lost productivity. Cloud systems have 99.999% SLA uptime with automatic failover.
Source: Gartner Telephony Availability Research 2023
Methodology
How we calculate your savings
This calculator is transparent about its sources and assumptions. Journalists, analysts, and procurement teams can cite these benchmarks independently.
1. True current cost
Your visible phone bill is combined with hidden costs: IT maintenance time (at your specified hourly rate), PBX hardware and IT maintenance where applicable ($480 per user per year — CompTIA 2024: $400–$560/user blended average for on-premise systems), and international call overcharging versus VoIP rates.
2. Estimated VoIP cost
Cloud VoIP cost is calculated using a per-user rate of $25/user/month (the published median for mid-tier UCaaS plans per Gartner 2024 Magic Quadrant data). For SMBs (under 50 users) the calculator uses $28/user. International call savings apply the Gartner-published 55% average reduction on international minutes at $0.035/minute baseline.
3. System-type adjustments
On-premise PBX carries additional hardware maintenance cost not present for landlines or hosted VoIP. Basic/hosted VoIP upgrades to a full UCaaS platform — savings are lower (10–25%) because some cost reduction has already been captured. Mobile-only setups see the largest percentage reduction due to high per-line mobile carrier costs.
4. 3-year projection
The 3-year figure applies a 3% annual cost escalation to the current system (industry-standard carrier price increase assumption from FCC 2024 data) while VoIP costs remain flat — reflecting the typical per-user pricing model. Year 1 is not discounted for migration costs; those are site-specific and quoted separately.
Primary sources
- FCC Business Telephone Service Report 2024 — per-line PSTN pricing benchmarks
- Gartner UCaaS Magic Quadrant 2024 — cloud telephony per-user cost ranges
- Metrigy UCaaS & CCaaS Market Report 2023–2024 — IT time and migration savings data
- IDC Cloud Communications Forecast 2024 — cost per user at scale data
- CompTIA IT Industry Outlook 2024 — hardware maintenance cost percentages
- Gartner Telephony Availability Research 2023 — downtime duration and cost data
FAQ
Common questions
How accurate is this VoIP savings estimate?
This calculator uses published industry benchmarks from sources including the FCC, Gartner, Metrigy, and peer-reviewed telecom research. Average savings figures reflect documented outcomes from organizations that have completed VoIP migrations. Your actual savings will vary based on your current carrier rates, contract terms, hardware age, and usage patterns. Treat this as a directional estimate rather than a quote.
What makes VoIP cheaper than traditional phone lines?
Traditional phone systems (PSTN/landline and on-premise PBX) carry three cost layers that cloud VoIP eliminates: per-line hardware and installation fees, monthly per-line carrier charges, and ongoing IT maintenance for physical equipment. Cloud VoIP consolidates all of these into a per-user subscription with no hardware capex and zero maintenance overhead. International and long-distance calling is typically also 40–80% cheaper over VoIP versus PSTN.
What is included in the "hidden costs" the calculator shows?
Beyond the monthly phone bill, traditional systems carry costs most businesses underestimate: IT staff time for maintenance and moves/adds/changes, annual hardware maintenance contracts, per-call charges for long-distance and international, upgrade costs as hardware ages, and downtime during failures. The calculator surfaces these using industry-average estimates. You can adjust inputs to reflect your actual situation.
Does the estimate include the cost of switching to VoIP?
The estimate reflects ongoing annual savings, not one-time migration costs. Migration costs (number porting, user training, any new IP phones or headsets) are typically recovered within 3–6 months for most SMBs. The 3-year projection in your results accounts for year-one costs being partially offset by migration, showing the cumulative savings picture.
What is the industry-average VoIP savings percentage?
Peer-reviewed research and analyst reports consistently show 40–60% total communication cost reduction for businesses switching from PSTN/legacy PBX to cloud VoIP. SMBs with fewer than 50 employees often see higher percentage savings because they carry proportionally more per-line overhead. Enterprises with complex on-premise PBX infrastructure typically see 30–50% savings after accounting for the PBX they are replacing.
Can I share or save my calculation results?
Yes — your inputs are encoded in the page URL so you can bookmark or share your calculation by copying the URL from your browser. Results are calculated entirely in your browser; no data is sent to our servers.
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Our team will put together a custom analysis — actual per-user cost, migration timeline, and expected savings — based on your traffic and setup.