Object Storage · decision tool

Cloudflare R2 vs S3 — egress is the whole story

At low egress they're close; at 2TB/month S3 egress alone is ~$171 while R2 is $0. Set your stored GB and egress; the verdict and monthly cost update live from verified pricing.

Prices verified 2026-07-17 against official pricing pages · fit weights are our estimates (see methodology) · share the URL to share your configuration

As of Jul 2026, with 100 GB stored, 200 GB egress/month, a $50 budget for this slot, Cloudflare R2 ranks first for these inputs at 88% fit and a StackSays-estimated $1.35/month (AWS S3 Standard: 69% fit, $11.30/month). Fit weights are our estimates; prices trace to official pages. Change any input below and the verdict recomputes.

Your situation

The verdict updates as you move these.

Stored data (GB)total bytes at rest in the bucketMonthly egress (GB)data served out to users — the number that quietly wrecks S3 billsBudget for this slot ($/mo)what you'd accept paying for the object storage layerTeam size1 = solo; bundled platforms save glue time for small teams

Clear pick for your inputs

Cloudflare R2fit 88% · est $1.35/mo

S3-compatible object storage with genuinely zero egress fees — the default egress-heavy pick

vs AWS S3 Standard: fit 88% against 69%, est $1.35 against $11.30 per month

Cloudflare R2fit 88%

$1.35/mo

AWS S3 Standardfit 69%

$11.30/mo

Comparing 2 tools head-to-head. Open the full field (7 options) →

The decision, in plain words

For a solo builder at 100 GB stored and a $50.00/mo budget for the object storage slot, Cloudflare R2 leads at 88% fit and $1.35/mo. The two rules doing the work: budget fit (~$1.35/mo is 3% of your $50/mo budget); batteries included (Bundles bundled CDN delivery — fewer services to glue at team size 1).

The gap to AWS S3 Standard (69% fit) is wide at these inputs — you'd need to change your requirements, not your taste, to flip it.

Honest weak spot of the pick: no free tier — paying from day one.

Generated from the calculation above — every number traces to the sourced data; nothing here is written by an AI making things up.

Why Cloudflare R2 scores 88%

Budget fit (weight 30, our estimate) — ~$1.35/mo is 3% of your $50/mo budget+30

Batteries included (weight 12, our estimate) — Bundles bundled CDN delivery — fewer services to glue at team size 1+12

Exit cost (weight 4, our estimate) — S3-compatible API — moving providers is mostly an endpoint + credentials change+3.2

Ecosystem maturity (weight 8, our estimate) — established — our estimate from ecosystem age, docs and hiring pool+8

Egress predictability (weight 8, our estimate) — No metered egress fees — the bill can't blow up when traffic spikes (weight is our estimate)+8

Free-tier runway (weight 10, our estimate) — No free tier — paying from day one-6

Total (lines sum exactly)55.2

Possible range −72…+72 (sum of active rule weights) · fit % = (total + max) / (2 × max)(55.2 + 72) / 144 = 88%

How the $1.35/mo estimate is calculated

stored data overage — 90GB over 10GB included × $0.015/GB$1.35

egress overage — 200GB over 0GB included × $0/GB$0

Monthly total (lines sum exactly)$1.35

What could change this verdict

No single input change within the tested range changes the winner.

Cost risk

Estimated now (StackSays estimate, not your final bill)$1.35/mo · Standard

Free-tier statusNo free tier — paid from the first unit

Official prices verified 2026-07-17; calculation is deterministic code over those prices.

At a glance

Tool	Free tier	Paid entry	Verified
Cloudflare R2	No free tier	Pay-as-you-go	2026-07-17
AWS S3 Standard	No free tier	Pay-as-you-go	2026-07-17

Where did you land?anonymous, one click

Data sources

Tool	Source	Verified
Cloudflare R2	Cloudflare R2 pricing	2026-07-17
AWS S3 Standard	AWS S3 pricing	2026-07-17

A monitor re-checks these pages for changes; when a vendor moves a price, the date updates and every verdict recomputes.

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