Storage & File Size Calculator
Convert file and storage sizes between decimal (KB, MB, GB) and binary (KiB, MiB, GiB) units and understand why they differ.
Runs locally in your browser
How many files fit?
Approximately 40 files fit.
Converted
Bytes1,073,741,824
KB (10³)1,073,741.824
MB (10⁶)1,073.7418
GB (10⁹)1.0737
TB (10¹²)0.0011
KiB (2¹⁰)1,048,576
MiB (2²⁰)1,024
GiB (2³⁰)1
TiB (2⁴⁰)0.001
What is the Storage & File Size Calculator?
This converter translates a size between decimal SI units (powers of 1000) and binary IEC units (powers of 1024), the source of the classic “missing gigabytes” confusion.
How to use it
- 1Enter a value and pick its unit.
- 2Read the equivalent in every other unit.
How it works
Everything is normalized to bytes. Decimal units multiply by 1000ⁿ; binary units multiply by 1024ⁿ. A “1 TB” drive holds 1,000,000,000,000 bytes ≈ 931 GiB.
Limitations & notes
- Rounding is applied for display; the byte value is exact.
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