Calculators
12 tools
Calculator library
Workout Calculators
Use these calculators to estimate loads, structure training blocks, and interpret outcomes before your next session.
Categories
5 focus areas
Purpose
Estimate, compare, and plan faster
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Bulk/Cut Calorie Calculator
Set a daily calorie target for bulking or cutting by applying a measured surplus or deficit to your maintenance intake.
nutrition
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Deload Calculator
Reduce current working load by a chosen percentage to plan lighter deload sessions and manage accumulated fatigue across a training block.
recovery
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FFMI Calculator
Estimate fat-free mass index from bodyweight, height, and body fat percentage to benchmark your lean mass relative to your height.
body-composition
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One Rep Max Calculator
Enter your weight and reps to instantly estimate your 1RM. Get a full percentage breakdown to plan every working set across your entire training block.
strength
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Plate Calculator
Find the exact per-side plate load you need after accounting for your barbell weight. Avoid arithmetic errors and load the bar correctly every set.
strength
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Rest Time Calculator
Choose suggested rest intervals between sets based on your intended effort intensity — low, moderate, or high — to match pacing with your training goal.
recovery
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RPE/RIR to %1RM Calculator
Translate your target reps and reps in reserve into an estimated %1RM using a reference chart model — so you can pick working weights based on effort, not just memory.
strength
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Strength Level Standards Calculator
Estimate your lift-to-bodyweight ratio to benchmark current strength against widely used population standards across major barbell lifts.
strength
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Training Max Calculator
Convert your 1RM into a conservative training max to keep percentage-based prescriptions realistic, manageable, and sustainable across a full training block.
strength
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Warm-Up Set Calculator
Generate practical warm-up loads at progressive percentages leading into your top working set to prepare the nervous system without accumulating fatigue.
programming
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Weekly Volume Calculator
Estimate weekly rep volume from sets, reps, and training frequency to plan mesocycles and track workload across muscle groups over time.
programming
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Wilks DOTS Calculator
Calculate estimated DOTS and Wilks scores from bodyweight and total to compare powerlifting performance fairly across weight classes and sexes.
strength