What is SwimScience?
SwimScience provides free, professional-quality swimming resources based on 15+ years of competitive swimming experience. No ads, no paywalls, no required signups.
Explore Our Resources
Calculators
7 free swimming calculators including pace, SWOLF, CSS, split calculator, and training zones.
- ✓ Pace Calculator
- ✓ SWOLF Calculator
- ✓ CSS Calculator
- ✓ Training Zones
Technique Guides
Master all four competitive strokes with detailed technique guides and drills.
- ✓ Freestyle Technique
- ✓ Backstroke Technique
- ✓ Breaststroke & Butterfly
- ✓ Common Mistakes
Training Plans
Structured training plans for beginner to advanced swimmers with periodization.
- ✓ Beginner (0-6 months)
- ✓ Intermediate (6-24 months)
- ✓ Advanced (2+ years)
- ✓ Race Preparation
Workouts
30 structured workouts from beginner to advanced with complete instructions.
- ✓ 10 Beginner Workouts
- ✓ 10 Intermediate Workouts
- ✓ 10 Advanced Workouts
- ✓ All Levels Covered
Why Swimmers Trust SwimScience
Expert-Built
Created by competitive swimmers with 15+ years experience
Science-Based
All calculators use proven formulas and research
Always Free
No paywalls, no ads, no required signups
Popular Resources
Pace Calculator
Calculate pace per 100m for any distance and time. Most popular calculator.
Training Zones Calculator
Calculate your 5 training zones based on threshold pace.
Freestyle Technique Guide
Master freestyle with proper body position, catch, and breathing.
CSS Calculator
Find your Critical Swim Speed for training zone calculations.
Beginner Training Plan
12-week progressive plan for swimmers with 0-6 months experience.
SWOLF Calculator
Measure swimming efficiency with SWOLF score (strokes + time).
Take Your Swimming to the Next Level
While SwimScience provides excellent free tools, serious swimmers need comprehensive analytics. SwimAnalytics automatically imports your swim data and provides AI-powered insights.
- ✓ Automatic data import from your watch
- ✓ AI-powered training recommendations
- ✓ Progress tracking across all metrics
- ✓ Personalized training plans
- ✓ Race prediction and pacing strategies
About SwimScience
SwimScience was created by Albert Arno, a competitive swimmer with 15+ years experience including national-level competitions. Frustrated by ad-heavy, paywall-locked swimming tools online, Albert built SwimScience to provide free, professional-quality resources for all swimmers.
All content is based on proven swimming science, personal competitive experience, and established training principles. SwimScience will always remain free and ad-free.