# Speed Distance Time Calculator

## Description
Calculate speed, distance, or time given the other two values. Supports multiple units including km/h, mph, m/s, knots, ft/s, km, miles, meters, feet, yards, hours, minutes, and seconds.

## Features
- Solve for speed, distance, or time
- Multiple unit conversions
- Real-time calculations
- Unit conversion display for results

## How to Use
1. Select what you want to solve for (Speed, Distance, or Time)
2. Enter the two known values with their units
3. View the calculated result and all unit conversions

## Formulas
- Speed = Distance ÷ Time
- Distance = Speed × Time
- Time = Distance ÷ Speed

## Supported Units
- Speed: km/h, mph, m/s, knots, ft/s
- Distance: km, miles, meters, feet, yards
- Time: hours, minutes, seconds