Train by the numbers
18 calculators covering the numbers athletes actually use — what division you fight at, what your splits have to be, how strong you are and how much to eat. Real formulas, sources named, honest caveats, no signup.
Why free? Because the numbers are the easy part. The tools are free; the 12-week plan that acts on them is $49.
Boxing
Boxing Weight Class
Match your walking weight to a division — all seventeen pro classes plus the Olympic categories.
Open →BoxingPunch Stats
Turn your thrown-and-landed counts into accuracy and work rate per round and per minute.
Open →BoxingFight Scorecard
Score a fight round by round on the ten-point must system, deductions included.
Open →BoxingReach Advantage
Compare reach, height and ape index against an opponent.
Open →BoxingRound Timer
Pro, amateur and beginner round structures — or build your own and see the total.
Open →BoxingCalories Burned Boxing
Bag work, sparring, ring rounds and rope, from published MET values.
Open →Running
Running Pace
Solve for pace, time or distance — and see the same effort in min/km, min/mile and km/h.
Open →RunningRace Splits
Turn a goal time into even segment splits, from a 100 m through to a 5 K.
Open →RunningRace Time Predictor
Predict another distance from a recent race using Riegel’s endurance formula.
Open →RunningTraining Paces & VDOT
Your VDOT from one race, and the five Daniels training paces it sets.
Open →RunningStride & Cadence
Work out step rate, step length and stride length from a run or a 30-second count.
Open →RunningCalories Burned Running
Energy cost of a run at your pace, snapped to published MET values.
Open →Strength
Nutrition
Body Comp
More free tools
The numbers are free. The plan is $49.
Calculators tell you where you stand. The 12-week program is the sport-specific training that changes it — exact lifts, sets, and week-by-week progression.
Get the 12-Week Program — $49