Calculator workflow

Strength calculators for serious training math

Start with a recent set, estimate strength carefully, lower the number into a training max, and use the result as a planning anchor for structured work.

Best for

Lifters turning recent sets into usable training numbers without treating estimates as tested maxes.

Workflow

Use the calculators as a chain

1Estimate max from a recent set.
2Lower the estimate into a conservative training max.
3Choose the day's load from percentages or RPE.
4Compare similar work with volume load when the block changes.

Training tool

One-rep max calculator

Estimate your 1RM from a recent set, then turn that estimate into a practical training-max reference. Useful for structured lifting blocks. Not a promise of a tested max.

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Lift-specific tool

Bench press 1RM calculator

Estimate a bench press e1RM without pretending one set tells the whole story. Bench estimates are sensitive to pauses, touch point, setup tightness, and how close the set was to failure.

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Lift-specific tool

Squat 1RM calculator

Estimate a squat e1RM from recent work, with enough caveat to keep the number useful. Squat estimates move when depth, bracing, stance, or fatigue changes.

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Lift-specific tool

Deadlift 1RM calculator

Estimate a deadlift e1RM from recent work without turning one hard pull into an inflated training block. Deadlift estimates are especially sensitive to fatigue, straps, stance, and start position.

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Lift-specific tool

Overhead press 1RM calculator

Estimate an overhead press e1RM while keeping strictness and small load jumps in mind. Press estimates can swing when leg drive, layback, or lockout standards change.

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Training tool

Training max calculator

Turn an estimated 1RM into a conservative training max. Useful when the program should be driven by repeatable work, not a once-in-a-while peak.

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Training tool

RPE load calculator

Estimate a load for a target rep and RPE prescription. The output is a planning reference, not proof that the set will feel exactly right.

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Training tool

Volume load calculator

Estimate volume load from weight, reps, and sets. Useful when you want a simple training-work reference without pretending it captures effort or technique.

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Use Protocol for the training block

The calculators help with the math. Protocol is where the routine, workout flow, and progression stay connected after the number is chosen.

Start building in Protocol

Continue

Next workflow

Program planning calculatorsTurn the strength estimate into training maxes, working loads, warm-ups, and deload targets.Barbell calculatorsMove from the chosen target into plate loading and warm-up setup.

Support guides

Why your e1RM should not automatically become your training maxUse the estimate, then give the program room to work.How to use RPE when your program gives percentagesAdjust the plan without abandoning the plan.How to choose working weight from RPE and percentagesTurn the plan and the day's effort into a load you can actually use.

Caveats

Keep the number honest

Every number here is a planning reference, not a tested max or coaching prescription.
Technique changes, fatigue, equipment, and lift variation can all change the estimate.