Triathlon Nutrition Calculator
Fueling a triathlon correctly is one of the most decisive, and most commonly underestimated, parts of race preparation — a strong training block can still fall apart on race day from simple under-fueling or dehydration. This calculator turns your event…
Triathlon Heart Rate Training Zones Calculator
Triathlon training presents a heart rate challenge that single-sport athletes don’t face: the same triathlete’s max heart rate can genuinely read differently across swimming, cycling, and running, even though it’s still the same heart…
Cycling Power Zones Calculator
This calculator converts a single number — your Functional Threshold Power, or FTP — into the standard seven cycling power training zones used throughout structured cycling training. Each zone maps to a specific range of wattage output and a specific…
VO2 Max Runners Calculator
This calculator estimates VO2 max — your body’s maximum rate of oxygen uptake during exercise, and one of the most widely used measures of aerobic fitness — using the Cooper 12-minute run test. All it needs is one number: the total distance you…
Training Pace Calculator
This training pace calculator converts one number you already know — your recent race pace — into a full set of suggested paces for the different types of runs in a typical training week: easy runs, long runs, tempo runs, and interval work. Rather than…
Running Split Calculator
A running split calculator takes a single goal finish time and turns it into the exact even pace you need to hold, kilometer by kilometer (and mile by mile), to cross the line right on target. Instead of guessing at pace mid-race or doing mental math at…
Pace Calculator
Pace, time, and distance are three numbers locked together by a single simple relationship, and if you know any two of them, you can always solve for the third. This calculator is a general-purpose solver built around that relationship — enter a distance…
Magic Mile Calculator
The “magic mile” is a widely used training and coaching concept: running a single all-out (or near-all-out) mile time trial as a quick, practical benchmark of your current fitness, then using that one result to estimate what you could run at…
Human Punch Force Calculator
This calculator produces a simplified physics-based estimate of punch force using the impulse-momentum relationship — a genuine, standard formula from classical mechanics, not a lab measurement. It is not a substitute for an actual force-plate or…
Age Grade Calculator
Age grading is a way of comparing running performances across different ages and genders on a level playing field, by converting a raw finish time into a single percentage that reflects how close that performance is to the best time theoretically…
