SizeMyFile.
KNOW THE LIMIT BEFORE YOU COMPRESS

Small units.
Big difference.

Turn an upload limit into an exact byte budget. Compare KB with KiB and leave a little room below the ceiling.

A margin leaves room below an ambiguous limit. It cannot guarantee acceptance.

Only the byte count is read. No file contents or filename are uploaded or saved.

RECOMMENDED BYTE BUDGET196,000 bytes

Limit: 200,000 bytes
2% margin applied

Decimal KB
196.000
Binary KiB
191.406
Decimal MB
0.1960

In the workspace’s KB field, enter 191.406250. Check the resulting exact-byte report.

Open the file tool →

Why use a byte-budget calculator?

A file displayed as 200 KB can exceed a strict 200,000-byte limit if your computer calculates the label using 1,024-byte units. This calculator keeps the two conventions explicit and reports the exact target.

Common upload labels, compared
LabelDecimal bytesBinary equivalent label and bytes
100 KB100,000100 KiB = 102,400
200 KB200,000200 KiB = 204,800
1 MB1,000,0001 MiB = 1,048,576
2 MB2,000,0002 MiB = 2,097,152

What this calculator does not predict

The required percentage reduction is arithmetic, not a promise that an encoder can reach it. Readability, required dimensions, accepted format and document structure can make a target infeasible. Review every output and follow the destination’s instructions.

Read the KB vs KiB guide → · Try the 200 KB image preset · Try the 1 MB PDF preset