Calculate exactly what plates to load per side for any target weight, in kg or lb, with your real plate inventory. Visual barbell, Olympic / women's / trap bar presets.
Per-side weight = (target − bar) / 2. A greedy algorithm picks the heaviest available plate that still fits, then repeats, mirrored on both sides. If the remainder can't be loaded with your available plates, the closest achievable weight is shown.
One Rep Max (1RM) Calculator + % Chart
Estimate your 1RM with 5 formulas (Epley, Brzycki, Lombardi, O'Conner, Wathan) and a full %1RM training chart.
Wilks, DOTS & IPF GL Powerlifting Score Calculator
Compare powerlifting totals across weight classes with Wilks, DOTS and IPF GL coefficients.
Macros from Calories Calculator (P / F / C in g)
Calculate grams of protein, fat and carbs from any calorie target with keto, balanced and high-protein presets.
Heart Rate, FTP & Pace Training Zone Calculator
Generate Z1–Z5 training zones from threshold heart rate, FTP or threshold pace for running, cycling and rowing.
Running Pace Converter & Race Time Predictor
Convert running pace between min/km and min/mi and predict your 5K, 10K, half and full marathon times.
Cycling Power to Speed Calculator
Estimate cycling speed from watts using bike weight, gradient, wind and surface drag.
