A Microsoft file hosting and synchronization service.
Dear zafar zuberi,
Greetings! Thank you for posting in Microsoft Community. We are happy to help you.
If you are using OneDrive for personal use, the amount of storage space you have depends on your subscription plan. The default storage space for OneDrive is 5 GB per user. However, you can purchase additional storage space if you need more.
If your OneDrive is purchased from Microsoft 365 Personal subscription, the default storage space is 1 TB per user.
To check how much storage space you have in OneDrive, you can sign in to your OneDrive website with your account via this link https://onedrive.live.com and look at the available storage space in the lower left corner of the screen.
Feel free to let me know if you have further concerns, I'll be glad to help you further.
Thanks for your time and understanding!
We hope you have a nice day. Stay safe and healthy always.
Sincerely,
Tina | Microsoft Community Moderator