MongoDB pricing
How MongoDB charges, what to know before you commit, and what you'd pay at your usage — next to what the alternatives would cost for the same thing.
How it charges
Checked 2026-10-03 on www.mongodb.com ↗ · USD, list pricesAtlas Free (M0) is free up to 512 MB; Flex is billed hourly at $8 to $30 a month depending on operations per second; Dedicated M10 starts at $0.08/hour.
- Free plan
- Yes
- Side project
- $8.03/mo Atlas Flex
- Growing
- $58/mo Atlas Dedicated M10
- Scaling
- over plan limits
What the model leaves out
M0 caps data transfer at 10 GB out per rolling seven days (about 43 GB a month) and throughput at 100 operations per second; the model applies the transfer cap. Flex starts at $0.011/hour and rises with operations, capped at $30/month — the model shows the starting rate, which covers up to 100 ops/second (about 260M operations a month if spread evenly). Atlas doesn't bill per operation, so reads and writes aren't priced. The page also lists shared M2 ($9/month, 2 GB) and M5 ($25/month, 5 GB) tiers, not modelled. M10 (2 GB RAM, 2 vCPUs) is $0.08/hour (from $56.94/month) with 10 GB storage in the base price; larger disks (up to 128 GB) cost extra and aren't priced on the page, so the model caps M10 at 10 GB. Free and Flex don't charge egress; Dedicated clusters pay the cloud provider's egress rates (not modelled). Backups and add-ons (Search, Vector Search) not modelled.
- Flex climbs through five operations-per-second tiers, from $0.011/hour at up to 100 ops/s to $0.0411/hour at 400–500 ops/s.
- Dedicated clusters pay for data moving out of the cluster or between regions; Free and Flex aren't charged for outgoing data.
- Clusters are billed hourly with monthly invoices.
- M0 is limited to 100 operations per second.
| Plan | Monthly fee | Database size | Compute hours per month | Data transfer per month |
|---|---|---|---|---|
| Atlas Free (M0) | Free | up to 0.5 GB | — | up to 43 GB |
| Atlas Flex | None | up to 5 GB | $0.011 per hour | — |
| Atlas Dedicated M10 | None | up to 10 GB | $0.08 per hour | — |
What you'd pay
Usage only some alternatives charge for
Atlas Dedicated M10730 hours × $0.08 per hour$58/mo
Cost as you grow
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