📐 File Size Calculator
Convert between units, see download times, and real-world comparisons.
All Units
1048576
Bytes
1024
KB
1.00
MB
0
GB
0
TB
0
PB
Download Time
2G (50 Kbps)3m
3G (1 Mbps)8s
4G (25 Mbps)0s
5G (200 Mbps)0s
WiFi (50 Mbps)0s
Fiber (500 Mbps)0s
How Many Fit on a Device
16 GB Phone16,384
128 GB Phone131,072
1 TB Drive1,048,576
Real-World Comparison
Text page≈ 524.3
MP3 song (3 min)≈ 0.3
HD photo≈ 0.2
4K photo≈ 0.1
HD movie (720p)≈ 0.0
4K movie≈ 0.0
AAA game≈ 0.0
🔒 Runs in your browser · Nothing uploadedNo account · Free forever · Works offline
How to use File Size Calculator
- 1Open the tool — it runs entirely in your browser, nothing is uploaded.
- 2Enter or paste your input and follow the on-screen controls.
- 3Copy or download the result. Add it to Saved to find it again.