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Storage & upload calculators
Plan your storage, estimate upload times, and check attachment limits.
6 tools, ready when you are.
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File Upload Time Calculator
Estimate upload duration from file size, connection speed, and overhead.
FREE ONLINE TOOL◷Storage Capacity Calculator
Find free storage and the percentage of capacity used.
FREE ONLINE TOOL◷Photo Storage Calculator
Estimate how many photos fit using your own average photo size.
FREE ONLINE TOOL◷MB vs Image Resolution
Explore how pixel dimensions affect approximate uncompressed image data.
FREE ONLINE TOOL◷Email Attachment Size Calculator
Estimate whether an attachment fits a message budget after encoding.
FREE ONLINE TOOL◷Upload Size Limit Calculator
Check your file against an upload limit with a safety margin.
FREE ONLINE TOOL