A six node cluster
With realistic egress, which is often a large share of the bill
nodes: 6 node-hourly: 0.25 egress-gib-month: 2000 egress-per-gib: 0.09
Redis Cost Estimator
Enter your own rates and the shape of the deployment. Compute, egress and backup are separated, because egress is frequently the surprise.
Paste below, or drop a file anywhere on this panel
Or drop a file anywhere on this panel. Nothing is uploaded: the analysis runs in this tab.
The answer appears here
Paste on the left and press Calculate. Nothing leaves this tab.
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Results
Nothing else to flag.
No formatting problems, and nothing the rules object to. Worth remembering what that covers: this reads the file you pasted, not the account or cluster it will be applied to.
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Examples
Real input you can load into the tool above. Each one shows a different thing going wrong, because that is what the tool is for.
Compute only
The same cluster with no cross-zone traffic, for comparison
nodes: 6 node-hourly: 0.25 egress-gib-month: 0
Common mistakes
These are the ones that fail silently. The config is accepted, nothing raises an error, and the consequence arrives later.
Costing instances and stopping there
Cross-zone replication, consumer egress, backups and snapshots are all billed separately and frequently exceed compute.
Instead:Include every line. Egress in particular surprises people.
Provisioning memory as though all of it is usable
Only 60 to 70% is available for data once buffers and fork headroom are accounted for.
Instead:Cost the usable capacity, not the provisioned figure.
Committing to reserved capacity before rightsizing
A commitment on capacity you did not need locks the waste in for a year.
Instead:Rightsize first, then commit to what remains.
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