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Email API pricing calculator: Resend vs SendGrid vs Amazon SES

Type how many emails you send a month and see the plan each provider puts you on and what it costs. Resend and SendGrid sell monthly tiers, so the price jumps in steps. SES charges per email, so it doesn't.

What do 100,000 emails a month cost? (prices checked 2026-10-23)

$35 on Resend (Pro 100K) and $34.95 on SendGrid (Essentials 100K), a five-cent difference. Amazon SES charges $16.36 for the same mail on the Essentials plan new accounts start on ($16.00 for the messages plus $0.36 for 3 GB of 30 KB emails), or $10.36 on a la carte pricing. A dedicated IP moves you to SendGrid Pro ($89.95, one IP included) or Resend Scale ($90 plus $30 for the IP).

Message size only changes the SES line: Resend and SendGrid don't bill by size.

Cheapest for this volume

Resend from resend.com/pricing and SendGrid from twilio.com/en-us/products/email-api/pricing, both checked 2026-10-23; SES (US East) from aws.amazon.com/ses/pricing, checked 2026-10-18. Resend: Free 3,000 a month (100 a day); Pro $20 for 50,000 or $35 for 100,000; Scale $90 (100,000) to $1,150 (2.5 million); overage $0.90 to $0.46 per 1,000 depending on the plan; dedicated IP $30 a month on Scale only. SendGrid: Essentials $19.95 (50,000) or $34.95 (100,000); Pro $89.95 (100,000), $249 (300,000), $499 (700,000), $799 (1.5 million), $1,099 (2.5 million), one dedicated IP included; SendGrid doesn't publish overage rates, so we use the smallest tier that covers your volume; above 2.5 million it is Premier, custom pricing. SES: Essentials $0.16 per 1,000 ($0.14 above 10 million), a la carte $0.10, message data $0.12 per GB, dedicated IP $24.95 a month. Taxes, marketing-email plans and add-ons are not included.

Why the email line grows

On Resend and SendGrid you pay for a tier, not for what you sent. Send 51,000 emails on a 50,000 plan and you either pay overage or move up a step. Resend publishes its overage ($0.90 per 1,000 on Pro), and at 60,000 emails the Pro 50K plan plus overage ($29) is still cheaper than the next tier ($35). SendGrid doesn't publish overage rates on its pricing page and says upgrading usually beats paying them, so a busy month can push you into a plan you then keep paying for.

The jumps are where the money goes. Between 100,000 and 300,000 emails SendGrid goes from $34.95 to $249, because the Essentials plans stop at 100,000 and the next step is Pro. Resend's Scale plans step more gently ($90, $160, $350), so in the middle of the range it is usually the cheaper of the two. At 2.5 million a month they swap places: SendGrid Pro 2.5M is $1,099 and Resend Scale is $1,150.

SES is the odd one out. It charges per email from the first one, so the curve is a straight line, and once you are past the free tiers it costs roughly a half to a quarter of the other two. What you give up is the product around the sending: templates, suppression lists you can browse, a log of every message. On SES those are things you build or wire up yourself. For a team with a developer that is usually a one-off job. For a non-technical founder it can cost more than the difference.

If your email bill doesn't match what this page shows, or you're paying for a tier you only needed once, send us the bill. We read it line by line for free.