Triathlon tools

Triathlon Race Time Calculator

Estimate your triathlon finish time from your expected swim pace, bike speed, run pace and transition times.

Choose your race

Race distance 1.5 km swim · 40 km bike · 10 km run

Custom race distances

Swim

Bike

Run

Enter your expected pace

Swim paceper 100 m

minsec

Bike speedExpected average

km/h

Run paceper km

minsec

Add transitions

Swim → BikeTransition one

minsec

Bike → RunTransition two

minsec

Race start timeOptional · shows your estimated clock finish

Set your target finish time

Target finish time

hr : min : sec

Target total3:00:00

Transitions5:00

Swim + bike + run2:55:00

Choose a planning style

These are planning estimates, not performance guarantees. Adjust the splits to match your strengths, course and current fitness.

Adjust your plan

Lock a split you already know. When at least one sport is locked, use Rebalance unlocked to fit the remaining sports to your target.

Swim

Target split

hr: min: sec

Required pace—

Bike

Target split

hr: min: sec

Required speed—

Run

Target split

hr: min: sec

Required pace—

TransitionsThese always count toward your target time.

Swim → BikePlanned transition

minsec

Bike → RunPlanned transition

minsec

Current plan3:00:00

On target0:00

Estimated finish time Olympic Distance

3:04:43

Estimated finish at 10:04

Current plan — —

Race breakdown Share of total time

Swim

32:3017.6%

4:002.2%

Bike

1:25:4346.4%

2:301.4%

Run

1:00:0032.5%

Race pace

Swim pace2:10 /100 m

Bike speed28.0 km/h

Run pace6:00 /km

What does this goal require?

Your goal would require approximately these average paces and speeds. Use them as planning targets, not a physiological prediction.

This is a planning estimate, not a race-day guarantee. Conditions, terrain, fatigue and execution can all affect your final time.

How it works

How to predict or plan your triathlon finish time

Use Predict Finish Time to calculate forward from race-day pace, or Plan a Goal Time to work backward from a target finish. Both modes include swim, bike, run and transition time.

Predict from sustainable race pace

Enter the pace or speed you realistically expect to sustain during the complete event rather than your absolute best standalone performance.

Plan backward from a finish goal

In Goal Time mode, your target is split across swim, bike and run after T1 and T2 are removed. Edit or lock splits to test different race plans.

Treat every result as a planning target

Wind, terrain, heat, open-water conditions, nutrition, congestion and fatigue can all move your actual result away from the calculated estimate.

Race reference

Standard triathlon distances

Distance	Swim	Bike	Run
Sprint	750 m	20 km	5 km
Olympic	1.5 km	40 km	10 km
Half Distance	1.9 km	90 km	21.0975 km
Full Distance	3.8 km	180 km	42.195 km

FAQ

Triathlon race time and goal-planning questions

How accurate is a triathlon race time calculator? +

Treat the result as a planning estimate rather than a guaranteed race result. Weather, course profile, pacing, nutrition and fatigue can all influence your actual finish time.

Should I use my standalone running pace? +

Usually not. Running after the swim and bike is different from racing a standalone running event. Use a pace you realistically expect to sustain during the triathlon.

Are transition times included? +

Yes. Both T1 and T2 are included in the estimated finish time.

How does the goal-time planner choose splits? +

Balanced, Conservative Bike and Strong Bike are starting-point time allocations, not performance guarantees. You can edit every split, choose Custom, or lock known swim, bike or run times and rebalance the remaining time.

Can I use a custom race distance in both modes? +

Yes. Select Custom and enter your own swim, bike and run distances. The same distances are used for finish-time prediction and goal-split planning.

Ready to train?

Turn your race goal into a training plan.

Explore structured training plans, trackers and practical resources built for endurance athletes.