Le stockage des données (SI) suit le système international d'unités, où 1 kilobyte (KB) équivaut à 1 000 octets, et les données sont mesurées en octets et leurs multiples.
1 EB = 1,000 PB 
1 PB = 0.001 EB 
Exemple: 
Convertir 15 Exabytet en Pétaoctet:
15 EB = 15,000 PB 
| Exabytet | Pétaoctet | 
|---|---|
| 0.01 EB | 10 PB | 
| 0.1 EB | 100 PB | 
| 1 EB | 1,000 PB | 
| 2 EB | 2,000 PB | 
| 3 EB | 3,000 PB | 
| 5 EB | 5,000 PB | 
| 10 EB | 10,000 PB | 
| 20 EB | 20,000 PB | 
| 30 EB | 30,000 PB | 
| 40 EB | 40,000 PB | 
| 50 EB | 50,000 PB | 
| 60 EB | 60,000 PB | 
| 70 EB | 70,000 PB | 
| 80 EB | 80,000 PB | 
| 90 EB | 90,000 PB | 
| 100 EB | 100,000 PB | 
| 250 EB | 250,000 PB | 
| 500 EB | 500,000 PB | 
| 750 EB | 750,000 PB | 
| 1000 EB | 1,000,000 PB | 
| 10000 EB | 10,000,000 PB | 
| 100000 EB | 100,000,000 PB |