Data Transfer Calculator

Data Transfer Calculator is designed to accurately calculate the time required to transfer files from disk to disk or across networks.

Enter the amount of data — the transfer rate — and Data Transfer Calculator will automatically calculate the transfer time. Choose between Base 2 and Base 10 units to ensure accurate results specific to your operating system.

Tap the result to toggle through different time units from seconds to days.

Timers allow you to track transfers even when you’re not at your computer. Timers are compatible with Notification Center — which means the app does not need to be on-screen to receive a notification. Set multiple timers to track additional transfers.

The Info page reveals the logic behind the app and clarifies any mysteries between bit and byte.