Slow Motion Calculator

Professional slow motion calculations for filmmakers. Master frame rate conversions, speed ramping, and time calculations for cinematic effects.

Frame Rate Reference Guide

Common Frame Rates

24fps

Cinema Standard

Traditional film and cinematic content

30fps

Standard Video

Common for online content and TV

60fps

2x Slow Motion

Smooth slow motion at 50% speed

120fps

5x Slow Motion

Professional slow motion effects

High-Speed Capture

240fps

10x Slow Motion

Extreme slow motion for action

480fps

20x Slow Motion

Ultra-high-speed capture

960fps

40x Slow Motion

Scientific and artistic applications

1000fps+

Phantom Speed

Specialized high-speed cameras

Playback Standards

23.976fps

Film Standard

NTSC film transfer standard

25fps

PAL Standard

European broadcast standard

29.97fps

NTSC Standard

North American broadcast

50/60fps

High Frame Rate

Modern high-refresh displays

Slow Motion Calculations

Slow Motion Speed Calculator

Calculate playback speed and slow motion factor from capture and playback frame rates.

Formula:

Slow Motion Factor = Capture FPS ÷ Playback FPS

Examples:

120fps captured, 24fps playback

Calculation: 120 ÷ 24 = 5x slower

Result: 5x slow motion (20% speed)

240fps captured, 30fps playback

Calculation: 240 ÷ 30 = 8x slower

Result: 8x slow motion (12.5% speed)

Pro Tips:

  • Higher capture rates create smoother slow motion
  • Match playback rate to your final delivery format
  • Consider storage requirements for high frame rates

Duration Calculator

Calculate final duration when converting between frame rates for slow motion.

Formula:

Final Duration = Original Duration × (Capture FPS ÷ Playback FPS)

Examples:

10 seconds at 120fps to 24fps

Calculation: 10 × (120 ÷ 24) = 50 seconds

Result: 50 seconds final duration

5 seconds at 240fps to 30fps

Calculation: 5 × (240 ÷ 30) = 40 seconds

Result: 40 seconds final duration

Pro Tips:

  • Plan for longer final durations with high-speed capture
  • Consider pacing when editing slow motion sequences
  • Use variable speed ramping for dynamic effects

Frame Count Calculator

Calculate total frames needed for slow motion sequences.

Formula:

Total Frames = Duration (seconds) × Capture Frame Rate

Examples:

3 seconds at 240fps

Calculation: 3 × 240 = 720 frames

Result: 720 frames captured

8 seconds at 120fps

Calculation: 8 × 120 = 960 frames

Result: 960 frames captured

Pro Tips:

  • More frames provide more editing flexibility
  • Consider memory card capacity for long captures
  • Higher frame counts require more processing power

Speed Ramping Calculator

Calculate speed transitions for dynamic slow motion effects.

Formula:

Ramp Duration = (End Speed - Start Speed) ÷ Acceleration Rate

Examples:

100% to 25% speed over 2 seconds

Calculation: (100 - 25) ÷ 37.5 = 2 seconds

Result: 2 second speed ramp

50% to 10% speed over 1 second

Calculation: (50 - 10) ÷ 40 = 1 second

Result: 1 second speed ramp

Pro Tips:

  • Smooth ramps feel more natural than abrupt changes
  • Use ease-in/ease-out curves for professional results
  • Match ramp timing to action beats

Master Cinematic Slow Motion

Get instant slow motion calculations with CineMath. Perfect your frame rates, timing, and speed effects for professional results.

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