Transfer General · Cost calculators

What cross-cloud data transfer actually costs — before and after you build it.

Four models. Your numbers. No product pitch — these calculators stand on their own. Adjust the inputs; the math is visible and the assumptions are documented.

Model 01
—
Initial build + 3-year TCO
Model 02
—
Maintenance labor / year
Model 03
—
Audit evidence labor / year
Model 04
—
Egress waste / year
Model 01 / 04
Build cost

Initial build cost — DIY transfer pipeline

Building a cross-cloud transfer pipeline with object-layer encryption, integrity verification, and audit evidence. This calculator estimates the engineering investment — including the things teams routinely de-scope.

Assumption
160 hr / eng-month
Scope
Build + annual maintenance + annual audit labor
Output
3-year TCO estimate
Complexity spike: Moving from 2 clouds to 3 triples the integration surface — 3 cloud pairs instead of 1. Three IAM models, three SDK integrations, three failure modes.
Your environmentBuild assumptions
$175/hr
2 clouds
No
Adds FIPS-validation engineering overhead.
1
2 clouds = 1 pair · 3 clouds = 3 pairs.
Initial build
—
Annual maintenance
—
Annual audit labor
—
3-year TCO
—
Build components
Cloud-pair integration—
Object-layer encryption—
KMS integration—
FIPS validation work—
Total initial build—
Planning signal
—
Approximate senior-engineer delivery time at 8 hrs/day. Does not include procurement, security review, cross-team coordination, or change-management drag.
3-year TCO math
Initial build—
Year 1 maintenance—
Year 2 maintenance—
Year 3 maintenance—
Annual audit labor—
3-year total—
Model 02 / 04
Maintenance labor

Monthly maintenance — steady-state pipeline labor

Once the pipeline exists, teams still carry ongoing engineering cost: SDK drift, cert rotation, failure-handling upkeep, research across CSP changes, and recurring validation for regulated deployments.

Base model
Five recurring maintenance categories
Multiplier
2 clouds = 1.6× · 3 clouds = 2.5×
Output
Annual maintenance labor
Your environmentOngoing platform burden
$175/hr
2 clouds
1.6×
Automatically updates with cloud count.
Steady state
Excludes production incident-response spikes.
Monthly maintenance hrs
—
Monthly labor cost
—
Annual labor cost
—
Cloud multiplier
—
Monthly category breakdown
SDK / API drift—
Certificate / signing upkeep—
Failure-mode handling—
CSP change research—
Recurring validation (regulated)—
Total monthly (after CSP multiplier)—
Base monthly hours reflect steady-state operations on a working pipeline. Figures exclude initial build, incident response for production outages, and cross-team coordination overhead.
Model 03 / 04
Compliance cost

Audit evidence compliance cost labor

When an auditor asks for proof that a specific object moved intact between clouds, someone must reconstruct what happened — identifying object versions, reconciling partial transfers, validating integrity across disconnected CSP audit trails, and assembling it into evidence an auditor will accept.

Scope
Scheduled + ad hoc
Source
CSP audit trails
Output
Auditor evidence
Your environmentCompliance cadence & incident load
$175/hr
2
80 hrs
6
Assumes 8 hrs average per ad hoc request.
Scheduled audit labor
—
Ad hoc labor
—
Total annual labor
—
Evidence mode
Manual
Evidence assembly math
Scheduled cycles × hours—
× engineer rate—
= scheduled audit cost—
Ad hoc requests × 8 hrs avg.—
× engineer rate—
= ad hoc cost—
= total annual evidence labor—
This model covers labor only — the engineering time spent reconstructing transfer evidence. It does not include the cost of audit findings, remediation, delayed certifications, or regulatory penalties.
Model 04 / 04
Egress cost

Egress waste from failed transfers

When a cross-cloud transfer fails mid-stream, the data already moved is billed at egress rates — and must be re-transferred from scratch. This calculator estimates the annual cost of that wasted egress.

Egress rate
$0.087 / GB
Basis
AWS · standard
Assumptions
Midpoint failure
Your environmentAdjust to match your pipeline
50 TB
10 GB
5%
Percentage of objects that fail and require full retransmit.
50%
How far through the transfer before failure.
Failed objects / month
—
Wasted data / failure
—
Monthly wasted egress
—
Annual wasted egress
—
Waste calculation
Average object size—
Failure rate—
Progress at failure—
Wasted data / failure—
Failed objects / month—
Wasted GB / month—
Egress rate—
Annual wasted egress—

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