Free data table
Managed Postgres pricing compared
A Postgres database with 1 GB of RAM and 10 GB of data costs $13.50 a month on Railway Postgres, $25.25 on Supabase Pro and $40.80 on Fly.io Managed Postgres. At 4 GB of RAM and 50 GB the spread gets wider. Here is the same database priced on seven setups, every number computed from the provider's own pricing page on the date shown.
| Where it runs | How it's billed | 1 GB RAM, 10 GB of data | 4 GB RAM, 50 GB of data | Checked |
|---|---|---|---|---|
| Supabase ProThe plan also includes auth, storage and edge functions. | Pro plan $25 with $10 of compute credit; Micro (1 GB) or Medium (4 GB) compute; 8 GB of disk included, then $0.125 per GB | $25.25 | $80.25 | 2026-10-11 |
| Fly.io Managed PostgresEvery plan includes high availability, backups and connection pooling (Fly docs). | Basic (1 GB) $38 or, with no 4 GB plan, Launch (8 GB) $282; storage $0.28 per GB used | $40.80 | $296.00 | 2026-11-02 |
| Render PostgresBilled by instance size; disk can grow but not shrink. | 0.5 CPU / 1 GB at $19 or 1 CPU / 4 GB at $55; storage $0.30 per GB | $22.00 | $70.00 | 2026-10-27 |
| Neon (Launch)Priced always on. Neon scales to zero after 5 idle minutes, so a database that sleeps half the day pays about half the compute. | Compute $0.106 per CU-hour (1 CU is about 4 GB RAM), so 0.25 CU or 1 CU running all 730 hours; storage $0.35 per GB | $22.85 | $94.88 | 2026-11-03 |
| Railway PostgresThe $5 Hobby or $20 Pro fee counts toward this usage. | Billed on use: RAM $10 per GB-month, CPU $20 per vCPU-month, volume $0.15 per GB. Priced at full RAM and 0.1 or 0.25 vCPU average | $13.50 | $52.50 | 2026-10-15 |
| Amazon RDS, Single-AZBurstable instances; sustained CPU above baseline adds CPU credit charges. | db.t4g.micro (1 GiB) or db.t4g.medium (4 GiB), On-Demand, US East; gp3 $0.115 per GB, 20 GB minimum | $13.98 | $53.20 | 2026-10-20 |
| Amazon RDS, Multi-AZThe standby is what you pay double for: automatic failover. | Same instances with a standby in a second Availability Zone; gp3 $0.23 per GB | $27.96 | $105.67 | 2026-10-20 |
Per month, US regions, one database, no read replicas. RDS is a 730-hour month in US East (N. Virginia), On-Demand, PostgreSQL; Fly.io and Railway are 30-day months. Excluded everywhere: data transfer out, backups beyond what the plan includes, point-in-time recovery add-ons, taxes. Railway bills what the database actually uses, so its figure assumes the RAM is fully used and CPU averages 0.1 or 0.25 vCPU; a quieter database costs less.
Reading the table
The cheap rows and the expensive rows aren't selling the same thing. Fly.io's $38 Basic plan includes high availability, backups and a connection pooler; RDS Single-AZ at about $14 is one instance with no standby to fail over to. Compare Fly with RDS Multi-AZ, not with Single-AZ, if failover matters to you.
Supabase looks expensive at 1 GB until you notice the $25 also covers auth, file storage and edge functions for the whole project. If you'd pay for those somewhere else anyway, it's the cheapest row in practice. At 4 GB it climbs because compute above Micro is billed on top.
Fly.io has no plan between 2 GB and 8 GB, so a database that needs 4 GB jumps from $72 to $282. That single gap is the biggest difference on this page, and it's worth knowing before you outgrow the Starter plan.
Storage is the line that changes slowly and never goes down. Render lets you grow a database disk but not shrink it, RDS allocated storage can't be reduced either, and Supabase bills the disk size it has grown to. Fly is the exception here: Managed Postgres storage is billed on what you use. Old event and log tables are where most of that growth comes from.
One RDS line this table can't show, because it depends on when your database was created: Extended Support. Once a major version passes AWS's standard support date, RDS bills $0.10 per vCPU-hour on top of the instance, and $0.20 from the third year, standby included (AWS Price List, checked November 7, 2026). PostgreSQL 13 has paid it since March 1, 2026 and PostgreSQL 14 starts on March 1, 2027. On the db.t4g.medium row that is $146 a month Single-AZ and $292 Multi-AZ, more than the instance itself. How the RDS fee works and how to find it on your bill.
Using this table
You're welcome to cite or reuse it under CC BY 4.0, with a link back to this page. For your own numbers, the calculators go further: Supabase, Fly.io, Render, Railway and Amazon RDS.
If your database is the biggest line on the bill, our free cloud cost audit ($0) tells you whether it's the plan, the size or the queries. Or we fix it through our cloud cost optimization services: $0 up front, 50% of the verified monthly saving for 6 months, nothing if nothing is saved.