Resend Cost Calculator
Enter emails per month and optional peak per day, then pick a plan or let Auto choose the cheapest paid tier — Free, Pro $20 / $35 or Scale $90 to $1,150 — plus dedicated IP, extra domains, SSO, automations and inboxes. The calculator returns monthly total, overage and $ per 1,000 emails. Estimates only; resend.com/pricing prevails.
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Monthly total
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Unit cost
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Breakdown
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Formula (transactional email): plan base + max(0, emails − included) × overage per 1k + add-ons. Free $0: 3,000 emails/mo, 100/day, 3 domains, no overage. Pro $20 (50k) or $35 (100k), overage $0.90/1k. Scale $90 (100k, $0.90/1k), $160 (200k, $0.80/1k), $350 (500k, $0.70/1k), $650 (1M, $0.65/1k), $825 (1.5M, $0.52/1k), $1,150 (2.5M, $0.46/1k). Enterprise is custom (contact sales, not computed). Add-ons: dedicated IP $30/mo (Scale, >3k emails/day), extra domains $20/mo per +100, SSO $150/mo (Scale), automations $0.0015/run after 10k free, extra inboxes $1/mo (paid plans). “Auto” picks the cheapest paid plan including overage (Scale if dedicated IP or SSO is ticked). Example: Pro $20 at 60k → $20 + 10 × $0.90 = $29.
Estimates only. Official list prices as of 2026-11-02 (Asia/Shanghai); the provider's pricing page prevails. Sources: Resend pricing
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How it works
- How is Resend priced for transactional email?
- Free is $0 for 3,000 emails/month (100/day). Pro is $20 for 50k or $35 for 100k with $0.90 per 1k overage. Scale runs from $90 (100k) to $1,150 (2.5M), with overage falling from $0.90 to $0.46 per 1k. Enterprise is custom.
- How is overage calculated?
- Overage = (emails − included) ÷ 1,000 × the plan's overage rate. Example: Pro $20 at 60k emails → $20 + 10 × $0.90 = $29.
- What does Auto plan selection do?
- It prices every paid tier (base + overage) and picks the cheapest. Ticking dedicated IP or SSO forces a Scale tier because those add-ons require Scale.
- What add-ons does Resend charge for?
- Dedicated IP $30/mo (Scale, more than 3,000 emails/day), extra domains $20/mo per +100, SSO $150/mo (Scale), automations $0.0015 per run after 10k free, and extra inboxes $1/mo on paid plans.
- What happens if I exceed the Free plan?
- Free has no overage: above 3,000 emails/month or 100/day you must upgrade. The calculator flags both limits.