AT&T Data Calculator

Internet Data Calculator

Estimate your monthly data usage

Use the sliders below to estimate how much usage, on average, your monthly Internet activities take. Or click a data amount on the bar on the right to see a preset data package.

0
Emails
Emails sent and received*
0
Hours
Hours of streaming music
0
Hours
Hours of surfing the web
0
posts
Social media posts with photos
0
Hours
Hours of streaming standard-definition video
0
Hours
Hours of streaming high-definition video
0
Hours
Time spent online gaming
*Represents 75% of emails with no attachments and 25% of emails with attachments.
How we estimate
The examples below provide a general guideline for the amount of data used for each activity:

Activity Data Size
1 email (no attachments) 20KB
1 email (with standard attachments) 300KB
1 min. of surfing the web 250KB (15MB/hr)
1 song downloaded 4MB
1 photo upload to social media 5MB
1 min. of streaming standard-definition video 11.7MB (700MB/hr.)
1 min. of streaming high-definition video 41.7MB (2500MB/hr.)
1 min. of online games 200KB (12MB per hour)
Keep in mind that these examples are just estimates based on typical file sizes. Your usage may vary. **

1MB = 1,000KB approximately
1GB = 1,000MB approximately
1TB = 1,000GB approximately

Smartphone plan
1GB
or select a Mobile Share plan

Total Estimate
(excluding other account charges)

Some devices also require an Individual or
Family voice plan.
Your Estimated Monthly Data Usage
150GB
1TB
0GB 
1 5GB data plan is required to enable Mobile Hotspot or tethering.
2 $35 with new 2-year contract. $30 with month-to-month contract.
3 Prepaid data options available for Computers, Tablets, and Gaming Devices at att.com/buyasession.
4 $10/mo. unlimited data plan for standard phones requires Messaging Unlimited feature.
5 Data overage charges are automatically applied.
5 Requires monthly voice plan.

See how video affects your monthly data usage:

Activity 150GB 1TB
TV & Movies Watch 75 hours of SD TV AND stream 90 SD or 25 HD movie Watch 400 hours of SD TV AND stream 720 SD or 200 HD movies
Data

Plus, with any of these data amounts, you can:

  • Send/receive over 10,000 emails
  • Download/upload over 1,000 medium-sized photos on a social media site like Facebook
  • Download over 1,000 MP3 songs
  • Watch over 1,000 standard quality YouTube videos