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DICOM Transfer Time Calculator

Estimate how long a DICOM study batch takes to transfer over a network connection.

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Inputs

GB
Mbps

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Results

Transfer Time
Transfer Time102.4
Transfer Time6,144
Total Data3,600
Effective Bandwidth80

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Assumptions

  • 1 GB is treated as 1024 MB and converted to megabits using 8192 Mb per GB.
  • Bandwidth is steady across the transfer window.
  • The estimate is for operational planning and does not validate DICOM conformance or workflow rules.

Sensitivity preview

Average Study Size -10%: Transfer Time 4d 6h 24m 0s

Average Study Size Current: Transfer Time 4d 6h 24m 0s

Average Study Size +10%: Transfer Time 4d 6h 24m 0s

Formula: Transfer seconds = study size GB * study count * 8192 / (bandwidth Mbps * efficiency percent / 100 * concurrent transfers).

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About this DICOM Transfer Time Calculator

DICOM transfers are limited by data volume, available bandwidth, and transfer efficiency. This calculator estimates elapsed transfer time for a batch of imaging studies.

Who this calculator is for

  • PACS administrators planning migrations or bulk sends.
  • Radiology IT teams sizing image exchange workflows.
  • Teleradiology teams checking whether study transfer windows are realistic.

When to use it

  • Estimate a migration batch duration before scheduling downtime.
  • Check how long priors may take to send between facilities.
  • Compare transfer efficiency and concurrent transfer assumptions.

How to use this calculator

  1. Enter average study size and number of studies.
  2. Enter available bandwidth in Mbps.
  3. Adjust transfer efficiency and concurrent streams if known.
  4. Review total data, effective bandwidth, and elapsed transfer time.

Key assumptions

  • 1 GB is treated as 1024 MB and converted to megabits using 8192 Mb per GB.
  • Bandwidth is steady across the transfer window.
  • The estimate is for operational planning and does not validate DICOM conformance or workflow rules.

Dataset sources

DICOM modality storage planning presets
Effective date
2026-05-06
Last reviewed
2026-05-06

Actual study sizes and compression ratios vary by protocol, scanner, anatomy, image count, reconstruction, derived objects, and local PACS/VNA policy.

Curated modality planning presets for calculator defaults; no DICOM standard text or patient data is included.

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

Total data GB = Study size GB x Study count. Effective Mbps = Bandwidth x Efficiency x Concurrent streams. Transfer seconds = Total GB x 8192 / Effective Mbps.
Transfer seconds = study size GB * study count * 8192 / (bandwidth Mbps * efficiency percent / 100 * concurrent transfers).

Inputs explained

Study size

Average DICOM payload per study in GB.

Bandwidth

Usable network throughput in megabits per second.

Transfer efficiency

A practical reduction for protocol overhead, latency, throttling, and workflow limits.

Concurrent transfers

Parallel streams can improve throughput when systems and links support them.

Understanding your results

Actual transfers can be slower when PACS throttles jobs, latency is high, storage IO is constrained, or remote systems limit associations.

Example scenarios

Prior transfer batch

120 studies at 0.4 GB each over 100 Mbps with 80% efficiency takes about 82 minutes.

Key Features

  • Instant Calculation
  • Private & Secure
  • Mobile Optimized

Tips & Best Practices

  • Measure real transfer throughput from PACS logs when possible.
  • Use lower efficiency for high-latency WAN transfers or heavily loaded systems.
  • Avoid assuming concurrent streams help if the PACS, VNA, or remote site throttles connections.

Frequently Asked Questions

Why is the result slower than raw bandwidth math?
The efficiency setting accounts for protocol overhead, latency, throttling, PACS job scheduling, and other practical losses.
Can concurrent transfers always improve speed?
No. They help only when the network, PACS, storage, and remote endpoint can support the additional streams.
Is any DICOM data uploaded?
No. This calculator uses only the numbers you enter and runs locally in your browser.