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Study Count to Storage Calculator

Convert imaging study counts into storage from average study size, compression, redundancy, and overhead.

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Inputs

GB
:1

Your values stay on this device.

Results

Billable Storage
Usable Image Storage1.76
Raw Study Storage3.52
Average Stored Study0.23

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Assumptions

  • Average study size is representative.
  • Compression and redundancy are modeled as simple multipliers.
  • No study data is stored.

Sensitivity preview

Study Count -10%: Billable Storage 2.32 TB

Study Count Current: Billable Storage 2.32 TB

Study Count +10%: Billable Storage 2.32 TB

Formula: Raw TB = study count * average study GB / 1024. Usable TB = raw TB / compression ratio. Billable TB = usable TB * redundancy multiplier * overhead factor.

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About this Study Count to Storage Calculator

Study counts are often easier to forecast than raw terabytes. This calculator converts study count into archive storage using average-size and redundancy assumptions.

Who this calculator is for

  • PACS administrators.
  • Radiology operations teams.
  • Healthcare IT storage planners.

When to use it

  • Estimate storage from projected study count.
  • Apply compression and redundancy factors.
  • Feed storage totals into cost or migration calculators.

How to use this calculator

  1. Enter study count and average study size.
  2. Adjust compression, redundancy, and overhead.
  3. Review usable and billable storage.

Key assumptions

  • Average study size is representative.
  • Compression and redundancy are modeled as simple multipliers.
  • No study data is stored.

Accuracy and testing

Review formula sources, default test cases, assumptions, unit handling, rounding rules, and changelog for this calculator.

View accuracy page

How this calculator works

Usable TB = study count x average study GB / compression / 1024. Billable TB = usable TB x redundancy x overhead factor.
Raw TB = study count * average study GB / 1024. Usable TB = raw TB / compression ratio. Billable TB = usable TB * redundancy multiplier * overhead factor.

Inputs explained

Average study size

Average stored DICOM payload per study before this calculator compression.

Compression ratio

Effective reduction applied to average study size.

Redundancy multiplier

Additional billable copies or protected storage overhead.

Understanding your results

Use billable storage when planning vendor or hardware capacity; use usable storage when comparing image payload assumptions.

Example scenarios

Annual volume

100,000 studies at 0.45 GB each with 2:1 compression and 1.2x redundancy needs about 26 TB billable storage before overhead.

Key Features

  • Instant Calculation
  • Private & Secure
  • Mobile Optimized

Tips & Best Practices

  • Separate modality-specific averages for better forecasts.
  • Use high-percentile study size for capacity buffers.
  • Include derived images and priors if they are stored in the same archive.

Frequently Asked Questions

Should I use compressed or uncompressed average study size?
Use the average before this calculator compression, or set compression ratio to 1 if already compressed.
What is billable storage?
Billable storage includes redundancy and overhead assumptions you enter.
Are study details stored?
No. The calculation is local.