Squat from Deadlift Estimator

Predict your squat max from your deadlift using a typical ratio.

How it is calculated

The estimate multiplies your deadlift by a single fixed ratio: squat = deadlift × 0.85. Both values are in kilograms and the result is rounded to one decimal. There is only one input, so nothing about your build, leverages, stance, equipment (belt, knee sleeves, suit), training age or sex enters the calculation. Real lifters differ: someone with long legs, a weak brace or a pulling background may squat well below 85 % of their pull, while a squat specialist may be close to it. A deadlift of zero or less gives no result. Treat the output as a planning figure, not a tested max.

Worked example

A lifter has a deadlift one-rep max of 180 kg. Multiplying by 0.85 gives 180 × 0.85 = 153, so the estimated squat is 153.0 kg. In training this might mean starting a squat cycle with an opening top single around 140 kg, leaving some margin below the estimate, and then adjusting once real numbers from the gym replace the ratio.

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Common mistakes

  • Entering a rep-based deadlift, such as a set of five, as if it were a one-rep max. The 85 % ratio assumes a true 1RM on both sides.
  • Expecting the result to be your squat max. It is a ratio-based guess, and a gap of 10 % or more either way is normal.
  • Comparing a sumo or equipped deadlift to a raw squat. The figure is only meaningful if both lifts use the same equipment rules.
  • Reading a low estimate as a weakness. A deadlift-biased build can have an ordinary squat and a very high pull.
  • Entering pounds in a kilogram field and then loading the bar with a number that is 2.2 times too high.

About this calculator

The squat-to-deadlift ratio is a rough rule of thumb powerlifters use to sanity-check their numbers against each other: for most lifters, a one-rep-max back squat lands somewhere around 80 to 90 percent of their deadlift 1RM, since the deadlift typically allows a heavier load thanks to a shorter range of motion and less reliance on stabilizing the bar overhead of the spine.

Coaches use this kind of ratio to flag an imbalance worth training around — a lifter whose squat is unusually far below this range relative to their deadlift often has a quad or bracing weakness holding the squat back, while a squat close to or above the deadlift can signal a posterior-chain or grip weakness limiting the pull. Powerlifting federations and strength-standard charts (like those built from Wilks or DOTS-adjusted competition data) reference similar ratios when estimating an athlete’s likely total from a single known lift.

The estimate is a starting point for programming and no substitute for actually testing your squat.

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