Swimming Pace Calculator
Calculate your pace per 100 metres or yards from any distance and time. Includes speed and lap count.
Calculate pace
16 tools · instant results
Swimming Calculators
Every calculator on one page. Choose a tool, enter your numbers and get an instant, interpreted result. All calculations run in your browser — no login, no waiting.
Pace & Speed
Swimming Speed Calculator
Find your speed in m/s, km/h and mph from a distance and time, with a pace conversion.
Calculate speedTime & Distance
Swimming Time Calculator
Estimate total time to cover a target distance at a given pace. Plan race targets and time trials.
Calculate timeSwimming Distance Calculator
Work out how far you swam from a time and your pace. Useful for timed sets and watch checks.
Calculate distanceTraining & Intervals
CSS Calculator
Critical Swim Speed and training zones from 200 m and 400 m time trials.
Calculate CSSInterval Calculator
Plan repeats, rest, send-off times and total set duration for structured workouts.
Plan intervalsSplit Calculator
Break a target time into even splits with cumulative times and per-split pace.
Create splitsCalorie Calculator
Estimate calories burned by stroke type, intensity, duration and body weight.
Estimate caloriesTechnique & Efficiency
SWOLF Calculator
Measure swimming efficiency: time plus stroke count for one length. Lower is better.
Check SWOLFStroke Rate Calculator
Calculate strokes per minute (SPM) from stroke count and time. Find your tempo.
Calculate stroke rateStroke Length Calculator
Distance per stroke (DPS) and strokes per length (SPL) to measure pull efficiency.
Calculate stroke lengthPool & Unit Conversion
Pool Length Calculator
Convert lengths swum into total distance in metres, yards, km and miles.
Calculate pool distanceMetres to Yards Converter
Convert swimming distances between metres, yards, kilometres and miles.
Convert distanceTriathlon & Open Water
Triathlon Swim Calculator
Estimate triathlon swim times for Sprint, Olympic, Half-Iron and Ironman from your pace.
Estimate tri timeOpen Water Swim Pace
Adjust your pool pace for calm, choppy, windy or rough open water conditions.
Calculate open water paceRelay & Team
Relay Calculator
Add up to four leg times for a relay total, with cumulative splits per leg.
Calculate relay timeNot sure which calculator you need?
Read our quick guides to understand what each metric means and when to use it.