Online Speed Conversion and Calculation Tools

Access 31 online speed tools to convert velocity units and calculate travel times. Secure server-side processing with automatic file deletion after 6 hours.

Elysia Tools offers 31 online speed tools designed to convert velocity units—such as mph, km/h, knots, and m/s—and perform precise travel calculations. Input your data in the browser and let our servers handle the processing quickly without installing any software.

31 Tools

Images, Audio & Video
Audio Chipmunk Effect
Increase pitch and speed for a chipmunk effect
Images, Audio & Video
Audio Pitch Down
Decrease pitch without changing speed
Images, Audio & Video
Audio Pitch Up
Increase pitch without changing speed
Images, Audio & Video
Audio Resample Speed
Change speed by resampling (pitch shifts with speed)
Images, Audio & Video
Audio Set Pitch
Set pitch up or down without changing speed
Images, Audio & Video
Audio Set Speed
Set audio playback speed without changing pitch
Images, Audio & Video
Audio Speed Changer
Change audio playback speed while maintaining original pitch using time-stretching algorithms
Images, Audio & Video
Audio Speed Up
Speed up audio playback without changing pitch
Images, Audio & Video
Audio Tempo Change
Change audio tempo without changing pitch
Images, Audio & Video
Audio Time Stretch & Pitch
Change speed without pitch, or pitch without speed
Images, Audio & Video
Adjust GIF Frame Delay
Adjust the frame delay timing of animated GIF images to control playback speed and timing
Math, Date & Finance
Harmonic Mean Calculator
Calculate the harmonic mean of positive values, with optional arithmetic and geometric mean comparison
Design & Color
Image Motion Blur Kernel
Apply motion blur kernel to simulate camera movement or object motion in specified direction
Math, Date & Finance
KMH to Knot
Convert kilometers per hour to knots with configurable decimal precision
Math, Date & Finance
KMH to MPH
Convert kilometers per hour to miles per hour with configurable decimal precision
Math, Date & Finance
KMH to M/S
Convert kilometers per hour to meters per second with configurable decimal precision
Math, Date & Finance
Knot to KMH
Convert knots to kilometers per hour with configurable decimal precision
Math, Date & Finance
Knot to MPH
Convert knots to miles per hour with configurable decimal precision
Math, Date & Finance
MPH to KMH
Convert miles per hour to kilometers per hour with configurable decimal precision
Math, Date & Finance
MPH to Knot
Convert miles per hour to knots with configurable decimal precision
Math, Date & Finance
MPH to M/S
Convert miles per hour to meters per second with configurable decimal precision
Math, Date & Finance
M/S to KMH
Convert meters per second to kilometers per hour with configurable decimal precision
Math, Date & Finance
M/S to MPH
Convert meters per second to miles per hour with configurable decimal precision
Math, Date & Finance
Pace Min/Km to KMH
Convert running pace in minutes per kilometer to kilometers per hour
Math, Date & Finance
Pace Min/Mile to MPH
Convert running pace in minutes per mile to miles per hour
Health, Sports & Fitness
Running Pace Calculator
Calculate running pace, speed, and time for various distances
Math, Date & Finance
Speed Unit Converter
Convert between different speed units (m/s, km/h, mph, knot, mach, etc.)
Health, Sports & Fitness
Swim Pace Calculator
Calculate swimming pace, speed, and time for various distances
Health, Sports & Fitness
Tennis Serve Speed Calculator
Calculate tennis serve speed based on distance and time
Images, Audio & Video
Video Speed Changer
Change video playback speed (faster or slower) while maintaining audio pitch
Images, Audio & Video
Video Speed Up
Speed up video playback (1.25x to 4x faster) while maintaining audio pitch

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FAQ

What velocity units can I convert with these tools?

You can convert between a wide range of speed units, including miles per hour (mph), kilometers per hour (km/h), meters per second (m/s), knots, and mach, making it easy to translate speed data for different standards.

Is my data stored on your servers during processing?

No, we prioritize your privacy. Text inputs are not stored, and any files you upload for processing are automatically and permanently deleted from our servers after 6 hours.

Do I need to install any plugins or applications?

No software installation is required. You can operate all speed tools directly within your web browser, while the computations are securely processed on our servers.