# Developer Calculations

## Data sizes
App bundle: 2.5 MB to KB
Database: 500 MB to GiB
Upload limit: 10 GiB to GB
Cache: 256 MiB to MB

## Network
Download: 100 Mbps
Time for 1 GB: 1 GB to Mb

## Screen math
12 pt in px
em = 18
1.5 em in px
ppi = 326
1 cm in px

## CSS units
em = 16
2.5 em in px
48 px in pt

## Sprint planning
Story points: 42
Velocity: 15
Sprints needed: 42 / 15
42 / 15 rounded up

## Time estimates
3h 30m in minutes
8 hours * 5 days
40 hours as timespan

## Video production
30 fps * 10 minutes
00:30:00:00 @ 24 fps in frames
frames_per_hour = 24 * 3600

## Hex/Binary
255 in hex
0xFF in bin
0b11111111
192 in bin
168 in hex

## Performance
Requests: 1500 per second
Daily: 1500 * 86400
Daily in sci
