Ronnabytes (RB) to Terabytes (TB) Converter
Convert ronnabytes to terabytes.
1 RB = 1,000,000,000,000,000 TB
How to convert RB to TB
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 Terabyte is 1012 bytes. Divide one by the other and you get the ratio between the two units: 1027 ÷ 1012 = 1015.
Ronnabyte is the bigger unit, so you multiply. Every RB holds 1015 TB, which means the decimal point moves 15 places to the right.
On the ladder (B → KB → MB → GB → TB → PB → EB → ZB → YB → RB → QB) these two are 5 steps apart. Every step is a factor of 1,000, so 5 steps means 1,000 multiplied by itself 5 times, which is 1015.
The formula
TB = RB × 10151 RB = 1 × 1015 TB1015 means 1 followed by 15 zeros
Worked example 1: Converting 1 RB
1 RB × 1015 = 1 × 1015 TBThe decimal point moves 15 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 × 1015 = 500,000,000,000,000 TBThe decimal point moves 15 places to the right.
Worked example 3: Converting 12.75 RB
12.75 RB × 1015 = 1.275 × 1016 TBThe decimal point moves 15 places to the right.
Need the other direction? Open the TB to RB converter.
RB to TB examples
The ronnabyte is a new name that exists so future data totals have a label. In terabytes that is 1 × 1015 TB.
| RB | TB |
|---|---|
| 1 RB | 1 × 1015 TB |
| 2.5 RB | 2.5 × 1015 TB |
| 10 RB | 1 × 1016 TB |
| 50 RB | 5 × 1016 TB |
| 100 RB | 1 × 1017 TB |
| 500 RB | 5 × 1017 TB |
| 1,000 RB | 1 × 1018 TB |
Where RB to TB 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 terabyte is 1,000 gigabytes, about 250,000 photos at 4 MB each. Terabytes are how consumer SSDs, external drives, home NAS boxes and cloud storage plans are sold.
Going from ronnabytes down to terabytes 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 TB FAQ
How many terabytes are in 1 ronnabyte?
There are 1015 terabytes in 1 ronnabyte, so 1 RB = 1015 TB.
Is RB to TB 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 TB to RB?
Go the other way: divide by 1015, which moves the decimal point 15 places to the left. The swap button on the converter does it for you.