Mailchimp vs Brevo (Sendinblue)
Estimate what moving from Mailchimp to Brevo (Sendinblue) costs over 12 to 36 months, including the one-time switch. Then remap your exported CSV headers.
Why teams look at this switch: Contact-tier pricing that also counts unsubscribed contacts vs Brevo pricing by monthly email volume
Cost calculator
Reference price ladder
Reference prices, checked 24 Oct 2026. Vendor list prices in USD, as published. Prices change and differ by region, tax and contract. Confirm on the vendor's page before you decide.
| Plan | Up to | Monthly billing |
|---|---|---|
| Standard 500 | 500 | $20 |
| Standard 1.5k | 1,500 | $45 |
| Standard 2.5k | 2,500 | $60 |
| Standard 5k | 5,000 | $100 |
| Standard 10k | 10,000 | $135 |
| Standard 15k | 15,000 | $230 |
| Standard 25k | 25,000 | $310 |
| Standard 50k | 50,000 | $450 |
| Standard 100k | 100,000 | $800 |
| Plan | Up to | Monthly billing |
|---|---|---|
| Starter 5k emails | 5,000 | $9 |
| Starter 10k emails | 10,000 | $17 |
| Starter 15k emails | 15,000 | $25 |
| Starter 20k emails | 20,000 | $32 |
| Starter 40k emails | 40,000 | $46 |
| Starter 50k emails | 50,000 | $56 |
| Starter 100k emails | 100,000 | $82 |
Assumptions
- Mailchimp Standard, billed monthly, all stored contacts counted (incl. unsubscribed until archived).
- Brevo Starter priced by monthly email volume: 4 sends per contact per month.
- Brevo logo removal add-on (~$10/mo) not included.
CSV header mapper
Rename exported Mailchimp column headers to the names Brevo (Sendinblue) expects. It runs in your browser. Only headers change and values are kept.
Renamed headers do not make a file import-ready. Compare the result with Brevo (Sendinblue)'s import template and create any custom fields there first. For contact lists, check opt-out and unsubscribe status separately before importing.
| Mailchimp column | Brevo (Sendinblue) column | Field type |
|---|---|---|
| Email Address | Standard field | |
| First Name | FIRSTNAME | Standard field |
| Last Name | LASTNAME | Standard field |
| Phone Number | SMS | Standard field |
| CLEAN_CAMPAIGN_SOURCE | SOURCE_ATTR | Custom field, create it first |
When moving to Brevo (Sendinblue) makes sense
- Your main cost driver is Contact-tier pricing that also counts unsubscribed contacts vs Brevo pricing by monthly email volume, and your volume is past the break-even point above.
- Your team can finish the CSV import and onboarding within the switching budget you entered.
- You have checked that Brevo (Sendinblue)'s plan covers the integrations and compliance rules you need.
When staying on Mailchimp is the better call
- The one-time migration, re-integration or retraining cost is larger than 12 to 24 months of savings.
- You are inside a multi-year Mailchimp contract with early-termination fees.
- Your workflow relies on add-ons or features Brevo (Sendinblue) does not support yet.
How the result changes with volume
Twelve-month totals at half, default and double volume, using the default pricing model and a $150 switching cost.
| Volume (Stored Contacts (with 4x/mo Email Volume)) | Mailchimp | Brevo (Sendinblue) | 12-month difference |
|---|---|---|---|
| 50% volume (7,500) | $135/mo | $46/mo | +$918 |
| Default volume (15,000) | $230/mo | $82/mo | +$1,626 |
| 200% volume (30,000) | $450/mo | ≈$98/mo | +$4,074 |
Questions
How is the total cost of Mailchimp and Brevo (Sendinblue) compared?
Each side's monthly cost is multiplied by the months in the horizon, and the one-time switching cost is added to Brevo (Sendinblue). At the default volume (Stored Contacts (with 4x/mo Email Volume): 15,000), the model gives about $230 per month for Mailchimp and $82 per month for Brevo (Sendinblue).
How do Mailchimp CSV headers map to Brevo (Sendinblue)?
The mapper renames Mailchimp columns (Email Address, First Name, Last Name, Phone Number, CLEAN_CAMPAIGN_SOURCE) to Brevo (Sendinblue) columns (EMAIL, FIRSTNAME, LASTNAME, SMS, SOURCE_ATTR) in your browser. Custom fields must exist in Brevo (Sendinblue) before you import.
When should a company stay on Mailchimp?
Stay if the one-time switching, integration or contract-exit cost is larger than the savings over the horizon you care about. The calculator shows that case as a negative result.