Ronnabytes (RB) to Gigabytes (GB) Converter
Convert ronnabytes to gigabytes.
1 RB = 1,000,000,000,000,000,000 GB
How to convert RB to GB
File sizes here use the decimal (SI) system, the same one drive makers and network providers use. In that system 1 Ronnabyte is 1027 bytes and 1 Gigabyte is 109 bytes. Divide one by the other and you get the ratio between the two units: 1027 ÷ 109 = 1018.
Ronnabyte is the bigger unit, so you multiply. Every RB holds 1018 GB, which means the decimal point moves 18 places to the right.
On the ladder (B → KB → MB → GB → TB → PB → EB → ZB → YB → RB → QB) these two are 6 steps apart. Every step is a factor of 1,000, so 6 steps means 1,000 multiplied by itself 6 times, which is 1018.
The formula
GB = RB × 10181 RB = 1 × 1018 GB1018 means 1 followed by 18 zeros
Worked example 1: Converting 1 RB
1 RB × 1018 = 1 × 1018 GBThe decimal point moves 18 places to the right.
The ronnabyte is a new name that exists so future data totals have a label.
Worked example 2: Converting 0.5 RB
0.5 RB × 1018 = 5 × 1017 GBThe decimal point moves 18 places to the right.
Worked example 3: Converting 12.75 RB
12.75 RB × 1018 = 1.275 × 1019 GBThe decimal point moves 18 places to the right.
Need the other direction? Open the GB to RB converter.
RB to GB examples
The ronnabyte is a new name that exists so future data totals have a label. In gigabytes that is 1 × 1018 GB.
| RB | GB |
|---|---|
| 1 RB | 1 × 1018 GB |
| 2.5 RB | 2.5 × 1018 GB |
| 10 RB | 1 × 1019 GB |
| 50 RB | 5 × 1019 GB |
| 100 RB | 1 × 1020 GB |
| 500 RB | 5 × 1020 GB |
| 1,000 RB | 1 × 1021 GB |
Where RB to GB comes up
Ronna- is the SI prefix for 1027, adopted in November 2022, so a ronnabyte is 1,000 yottabytes. Ronnabytes are new and mostly theoretical. You will see them in unit tables and in pieces about how big future data totals might get.
A gigabyte is 1,000 megabytes, about 250 photos at 4 MB each. Gigabytes are the language of phone storage, RAM, mobile data plans, game installs and USB sticks.
Going from ronnabytes down to gigabytes always gives a bigger number, because the unit you land on is smaller. It is the usual direction when a limit or a form asks for a smaller unit than the one you have in mind.
RB to GB FAQ
How many gigabytes are in 1 ronnabyte?
There are 1018 gigabytes in 1 ronnabyte, so 1 RB = 1018 GB.
Is RB to GB decimal or binary?
This page is decimal (SI), where 1 KB = 1,000 B. Operating systems often count in powers of 1,024 and still print KB, MB or GB, when they really mean KiB, MiB and GiB. At RB the gap is wider still.
How do I convert GB to RB?
Go the other way: divide by 1018, which moves the decimal point 18 places to the left. The swap button on the converter does it for you.