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Deadlift one-rep max calculator

315 lb for 3 reps is an estimated 333.5 lb deadlift max. Enter your own set below.

The deadlift is the easiest big lift to test on your own, because you can drop the bar. It is also the lift where form breaks first, so a clean set of 1 to 5 reps is the best input.

Updated October 2026

Estimated one-rep max

333.5 lb

Weight for each rep count

Reps% of maxWeight
1100%333.5 lb
297.2%324.3 lb
394.4%315 lb
588.9%296.5 lb
880.6%268.7 lb
1075%250.1 lb
1271.4%238.2 lb

Other formulas

FormulaEstimate
Epley346.5 lb
Brzycki333.5 lb
Lombardi351.6 lb
O'Conner338.6 lb
Mayhew359.1 lb
Wathan343.3 lb

Getting an accurate deadlift estimate

Deadlift max by weight and reps (lb)

Find the weight you lifted down the side and the reps you did across the top. The cell is your estimated one-rep max.

Deadlift one-rep max estimates in pounds
Weight1 rep2 reps3 reps4 reps5 reps6 reps8 reps10 reps12 reps
65 lb6566.968.870.973.175.580.786.791
85 lb8587.49092.795.698.7105.5113.3119
95 lb9597.7100.6103.6106.9110.3117.9126.7133
115 lb115118.3121.8125.5129.4133.5142.8153.3161
135 lb135138.9142.9147.3151.9156.8167.6180189
155 lb155159.4164.1169.1174.4180192.4206.7217
175 lb175180185.3190.9196.9203.2217.2233.3245
185 lb185190.3195.9201.8208.1214.8229.7246.7259
205 lb205210.9217.1223.6230.6238.1254.5273.3287
225 lb225231.4238.2245.5253.1261.3279.3300315
245 lb245252259.4267.3275.6284.5304.1326.7343
275 lb275282.9291.2300309.4319.4341.4366.7385
315 lb315324333.5343.6354.4365.8391420441
365 lb365375.4386.5398.2410.6423.9453.1486.7511
405 lb405416.6428.8441.8455.6470.3502.8540567

Deadlift max by weight and reps (kg)

Deadlift one-rep max estimates in kilograms
Weight1 rep2 reps3 reps4 reps5 reps6 reps8 reps10 reps12 reps
30 kg3030.931.832.733.834.837.24042
40 kg4041.142.443.64546.549.753.356
50 kg5051.452.954.556.358.162.166.770
60 kg6061.763.565.567.569.774.58084
70 kg707274.176.478.881.386.993.398
80 kg8082.384.787.39092.999.3106.7112
90 kg9092.695.398.2101.3104.5111.7120126
100 kg100102.9105.9109.1112.5116.1124.1133.3140
110 kg110113.1116.5120123.8127.7136.6146.7154
120 kg120123.4127.1130.9135139.4149160168
140 kg140144148.2152.7157.5162.6173.8186.7196
160 kg160164.6169.4174.5180185.8198.6213.3224
180 kg180185.1190.6196.4202.5209223.4240252
200 kg200205.7211.8218.2225232.3248.3266.7280

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Questions

How do I estimate my deadlift one-rep max?

Enter the weight and reps from a set of 1 to 5 clean reps. The calculator uses the same formula as the Lift app: Brzycki up to 10 reps, Epley above.

Why is my deadlift estimate higher than my real max?

Touch-and-go reps, straps, and long sets all push the estimate up. Use a paused, strap-free set to match a real test.

What is a good set to estimate a deadlift max from?

A hard set of 2 to 6 reps with the same form on every rep. For example, 315 lb for 3 reps gives an estimated deadlift one-rep max of 333.5 lb.

Lift does this maths for you

Lift is a strength log for iPhone. It fills in every set with the weight and reps that beat last time, works out your warm-ups, and tracks your estimated one-rep max for every lift. It is coming soon to the App Store.

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