How to Use This Calculator
- Fill in the values in the input table below.
- Calculate your annual totals using the formula section.
- Compare 1-year and 3-year totals to estimate ROI.
Step 1 — Your Inputs
Tip: If you’re unsure, start with your current numbers and a “next 12 months” estimate.
| Item | HubSpot | Open-Source (Self-Hosted) |
|---|---|---|
| Number of Contacts | _____ | Unlimited (flat-cost infra) |
| Number of Users | _____ | Unlimited (depends on your CRM choice) |
| Monthly Platform Subscription | $_____ / month | $_____ / month |
| Contact-based Charges | $_____ / month | $0 |
| Add-ons (Reporting, AI, Extra Seats) | $_____ / month | $_____ / month (optional support) |
| Email Sending Cost | $_____ / month | $_____ / month (SMTP provider or self-host) |
| Storage / Backup | $_____ / month | $_____ / month |
| Implementation / Maintenance | $_____ / year | $_____ / year |
Step 2 — Annual Cost Formulas
HubSpot Annual Cost
HubSpot Annual = (Monthly Subscription × 12) + (Contact Charges × 12) + (Add-ons × 12) + (Email Sending × 12) + (Storage/Backup × 12) + (Implementation/Maintenance per year)
Open-Source Annual Cost
Open-Source Annual = ((Server + Backup + Email) × 12) + (Optional Support × 12) + (Implementation/Maintenance per year)
Step 3 — 3-Year Comparison
Multiply each annual total by 3 and compare the numbers:
| Period | HubSpot | Open-Source | Your Savings |
|---|---|---|---|
| 1 Year | $_____ | $_____ | $_____ |
| 3 Years | $_____ | $_____ | $_____ |
What ROI Typically Looks Like
When contacts and automation grow, HubSpot cost tends to increase year by year. Open-source is usually more predictable:
- HubSpot: scales by contacts + tiers + add-ons
- Open-source: scales by server resources (predictable)
Next Step
If you want an accurate ROI estimate and a migration plan, we offer a structured HubSpot Exit Audit.
