VPS vs Shared Hosting Cost Calculator
Shared hosting starts at $3/month. A VPS starts at $12/month. So shared is cheaper — right? Not once you factor in backups, the cost of downtime, and the migration work you'll do when you outgrow it. This calculator gives you the real monthly number for both.
Calculate your monthly cost
How this is calculated
The formula isn't just the sticker price on the hosting page. It's the total cost of ownership per month, including the migration work you'll do when shared hosting stops being enough.
The downtime penalty is a rough proxy: we assume each hour of downtime on a shared server costs you about $5 per 10,000 monthly visitors in lost conversions, trust, and SEO momentum. This comes from analyzing the actual conversion drop our clients see during outages. If you have paid ads running during an outage, the real cost is higher.
The migration cost is amortized because you do it once, but you feel it over the first year. Four hours of DNS changes, database exports, file transfers, and testing at $50/hour is $200. Divided by 12 months, that's $16.67/month — enough to make a $12 VPS feel like a $28.67 VPS.
Worked example: A WordPress blog with 15,000 visitors
Here's a real scenario we ran into recently. A client had a WordPress blog on shared hosting paying $8/month. It was hitting resource limits during traffic spikes and going down about twice a month for an hour each — roughly 24 hours of downtime per year. They were considering a $20/month VPS.
- Shared: $8 + (24 hours × 1.5 × $5) = $188/year or $15.67/month
- VPS: $20 + (4 hours × 1.5 × $5) + ($200 / 12) = $20 + $30 + $16.67 = $80/year or $6.67/month more than VPS sticker price
- Real VPS monthly: $20 + $2.50/month downtime + $16.67 migration = $39.17/month
At first glance, VPS looks like $20 vs $8 — a $12 gap. But including the downtime penalty and the migration work, the gap is $39.17 vs $15.67. The VPS needs to prevent at least $23.50/month in downtime loss to justify itself. In this case, it did — the site stopped going down during traffic spikes.
Shared vs VPS: what actually changes
| Factor | Shared | VPS |
|---|---|---|
| Monthly cost | $3–$15 | $12–$60 |
| Resources | Shared with other accounts; limited to ~25% of server[citation:11] | Dedicated CPU, RAM, SSD allocation; full root access[citation:5] |
| Traffic ceiling | Typically fine up to ~10,000 visitors/month[citation:5] | Handles tens of thousands+ with proper config[citation:5] |
| Downtime risk | Higher — "noisy neighbor" spikes can take your site offline[citation:5] | Isolated environment; other users can't affect you[citation:11] |
| Custom software | Restricted; provider controls the stack | Full root; install anything, any PHP version[citation:11] |
| Email deliverability | Shared IP; reputation can be hurt by other users | Dedicated IP available; better control[citation:11] |
| Management burden | None — provider handles it | Higher — you patch, update, and monitor (unless managed) |