Runner Toolkit
Professional running tools for race planning, performance tracking, and unit conversions.
Quick Start
Jump right into our most popular tools
Pace Calculator
Calculate your running pace from distance and time
BMI Calculator
Calculate BMI and body composition analysis
Training Paces
Get personalized training paces for optimal performance
All Tools
Comprehensive suite of running calculators and converters
Race Tools
Pace Calculator
Calculate pace from distance and time
Finish Time Predictor
Predict race finish times based on current performance
Race Strategies
Generate optimal pacing strategies for any race distance
Training
My Training Paces
Get personalized training paces based on your recent run
Personal Tools
BMI & Body Composition
Calculate your BMI and estimate body fat using advanced methods
Calories Burned
Calculate calories burned during your runs
VO₂ Max
Estimate your maximum oxygen uptake
Unit Converters
Pace / Speed Converter
Convert between pace and speed units
Distance Converter
Convert between kilometers and miles
Weight Converter
Convert between kilograms and pounds
Why Choose Runner Toolkit?
Fast & Accurate
Get instant, precise calculations for all your running metrics.
Mobile Friendly
Works perfectly on all devices - phone, tablet, or desktop.
Customizable
Choose your preferred units and settings for a personalized experience.