Instagram Video Calculator

Professional Instagram video calculations for social media creators. Master Reels, Stories, and IGTV specifications for maximum engagement.

Instagram Video Specifications

Instagram Reels

Aspect Ratio

9:16

Vertical format for maximum screen coverage

Resolution

1080×1920

Full HD vertical resolution recommended

Duration

3s - 15min

Minimum 3 seconds, maximum 15 minutes for Reels

File Size

4GB max

Maximum file size for uploads

Instagram Stories

Aspect Ratio

9:16

Full-screen vertical format

Resolution

1080×1920

Optimal resolution for Stories

Duration

1s - 60s

Stories split into 15-second segments if longer

Frame Rate

30fps

Standard frame rate for smooth playback

Instagram Feed Posts

Square Posts

1:1 (1080×1080)

Classic Instagram square format

Landscape Posts

1.91:1 (1080×566)

Horizontal format for feed posts

Portrait Posts

4:5 (1080×1350)

Vertical format for feed posts

Duration

3s - 60min

Video length for feed posts (now treated as Reels)

Instagram Creator Calculations

Instagram File Size Calculator

Calculate file sizes for Instagram videos based on format and duration.

Formula:

File Size (MB) = (Bitrate × Duration × 60) ÷ 8

Examples:

30-second Reel at 8 Mbps

Calculation: (8 × 0.5 × 60) ÷ 8 = 30 MB

Result: 30 MB file size

60-second feed video at 6 Mbps

Calculation: (6 × 1 × 60) ÷ 8 = 45 MB

Result: 45 MB file size

Pro Tips:

  • Use 6-8 Mbps bitrate for good quality
  • Keep Reels under 100MB for faster processing
  • Stories process faster with lower bitrates

Instagram Aspect Ratio Calculator

Calculate proper dimensions for different Instagram formats.

Formula:

Height = Width × (Target Ratio Height ÷ Target Ratio Width)

Examples:

1080px wide for 9:16 Stories

Calculation: 1080 × (16 ÷ 9) = 1920

Result: 1080×1920 resolution

1080px wide for 4:5 feed post

Calculation: 1080 × (5 ÷ 4) = 1350

Result: 1080×1350 resolution

Pro Tips:

  • Always use 1080px width for best quality
  • Stories and Reels use same 9:16 format
  • Feed posts can use square, landscape, or portrait

Instagram Upload Time Calculator

Estimate upload times for Instagram content based on file size.

Formula:

Upload Time (seconds) = (File Size × 8) ÷ Upload Speed

Examples:

50MB Reel, 20 Mbps upload

Calculation: (50 × 8) ÷ 20 = 20 seconds

Result: 20 seconds upload time

25MB Story, 10 Mbps upload

Calculation: (25 × 8) ÷ 10 = 20 seconds

Result: 20 seconds upload time

Pro Tips:

  • Upload on WiFi for best speeds
  • Instagram compresses videos after upload
  • Stories upload faster than Reels

Instagram Engagement Time Calculator

Calculate optimal video length for maximum engagement.

Formula:

Engagement Score = (Watch Time ÷ Video Length) × 100

Examples:

30-second video, 20s average watch

Calculation: (20 ÷ 30) × 100 = 67%

Result: 67% completion rate

15-second video, 12s average watch

Calculation: (12 ÷ 15) × 100 = 80%

Result: 80% completion rate

Pro Tips:

  • Aim for 70%+ completion rates
  • Shorter videos often have higher completion
  • Hook viewers in first 3 seconds

Perfect Your Instagram Content Strategy

Get instant Instagram calculations with CineMath. Optimize your Reels, Stories, and feed posts for maximum engagement.

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