oracle tablespace sizing method

Since I have not made English a native language, I am poor at English.
Please understand the situation
A thing like the calculation sheet for estimating the size of table
space size after taking the following things of oracle into
consideration, or a tool,
Is it?

Table infomation
Index infomation
Record infomation

etc

I desire the most formal possible thing.
Thank you for your consideration.

oracle tablespace sizing method
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Since I have not made English a native language, I am poor at English.
Please understand the situation
A thing like the calculation sheet for estimating the size of table
space size after taking the following things of oracle into
consideration, or a tool,
Is it?

Table infomation
Index infomation
Record infomation

etc

I desire the most formal possible thing.
Thank you for your consideration.
