File Size & Data Converter

Convert bytes to GB instantly, estimate transfer times, and see how much fits on any drive or phone.

Turn bytes into gigabytes instantly — an exact file size and data converter for photos, downloads, drives, and dev work.

Type a number, pick a unit, get the precise answer straight away. No adverts, no rounding tricks, no confusing charts — just an exact converter with a clean, fast interface.

KEY FEATURES • Convert bit, byte, KB, MB, GB, TB and PB both ways, live as you type • Switch decimal (1000-based) and binary (1024-based) units in one tap • Transfer-time estimator — see exactly how long a download or upload takes over broadband, 5G, or Wi‑Fi • Storage planner — see how many photos, songs, or hours of video fit on any drive or phone • Pin favourite conversions and keep a saved history • Plain-language reference on why a "1 TB" drive shows less, and other storage facts

HOW IT WORKS

1. Enter a value and choose the units you're converting between
2. Read the exact result instantly, no calculator needed
3. Save it for later, or switch to Transfer and Planner for real-world estimates

Full access to the transfer-time estimator, storage planner, and complete all-units view is part of File Size Premium, available as a weekly, yearly, or lifetime option. The core converter works without any purchase.

File Size runs entirely on your device — no account, no adverts, and nothing you type ever leaves your phone.

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