GB vs TB: The Basic Difference
A gigabyte (GB) is 1,024 megabytes. A terabyte (TB) is 1,024 gigabytes — meaning 1 TB is roughly 1,000 times larger than 1 GB. Understanding this difference is essential when buying storage for phones, computers, cameras, or cloud services.
What Fits in 1 GB?
- ~230 MP3 songs (at 128 kbps)
- ~500 high-quality photos (from a smartphone)
- ~1–2 hours of standard-definition video
- ~250 PDF documents
What Fits in 1 TB?
- ~230,000 MP3 songs
- ~500,000 high-quality photos
- ~250 hours of 4K video
- ~1,000 hours of HD video
Storage Recommendations by Use Case
- Casual smartphone user: 64–128 GB is usually enough
- Power smartphone user / photographer: 256–512 GB
- Laptop for work and light media: 256 GB–1 TB SSD
- Video editor / content creator: 2–4 TB (or more)
- Home server / NAS: 4–20 TB
Cloud Storage Reference
- Google Photos free tier: 15 GB
- iCloud basic plan: 5 GB (free) or 50 GB ($0.99/mo)
- Dropbox Plus: 2 TB
- Google One: up to 30 TB available
Need to calculate storage conversions? Use our free digital storage converter.
Frequently Asked Questions
How many GB are in 1 TB?
In decimal terms (as used by hard drive manufacturers), 1 TB = 1,000 GB. In binary terms (as reported by operating systems), 1 TiB = 1,024 GiB. This is why a 1 TB hard drive shows approximately 931 GiB in Windows. For casual storage questions, the answer is 1 TB ≈ 1,000 GB.
How much storage do I need for 1,000 photos?
It depends on the camera. A smartphone photo from a modern iPhone or Android is typically 3–8 MB. So 1,000 photos ≈ 3–8 GB. RAW photos from a DSLR can be 20–50 MB each, meaning 1,000 RAW files = 20–50 GB. Always aim for at least 2× your estimated needs to leave room for growth.
Is 256 GB enough for a laptop in 2026?
256 GB is adequate for light use (documents, email, web browsing) but tight for video editing, gaming, or storing a large photo library. Most power users find 512 GB more comfortable as a minimum. If cloud storage is part of your workflow, 256 GB can work longer-term for everyday tasks.
Convert between GB, TB, GiB, TiB and all other storage units.
⚡ Digital Storage Converter — FreeAccuracy note: Conversion factors on SwiftConvertHub are sourced from NIST and IEC standards. Results are accurate for general use. For safety-critical or professional applications, verify results independently. Full disclaimer →
Victor A. Calvo S. is a software engineer and digital entrepreneur who builds practical, free tools for developers, students, and professionals worldwide. He is the creator of SwiftConvertHub, InstantLinkHub, and Feexio. All conversion factors are cross-referenced against NIST and IEC standards. Learn more →