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Progressive Overload Calculator

Written by the GymStreak coaching teamUpdated

Units
Reps you did in each working set

2.5 kg = a pair of 1.25 kg plates. Dumbbells often go up 2 kg.

Add weight after

The short answer

Progressive overload means doing a little more over time: more reps, then more weight. The simplest rule is double progression: pick a rep range such as 8–12, keep the weight until every set reaches 12, then add the smallest step you can and start again at 8. The ACSM suggests raising the load 2–10% once you can do one or two reps more than your target. Example: 3 × 12 at 60 kg means next time 3 × 8 at 62.5 kg.

01 / How it works

How the progressive overload calculator works

Enter the weight you used for your working sets, the rep range you train in and the reps you got in each set. The calculator applies one rule, double progression: if every set reached the top of the range, the weight goes up by the step you entered and the target drops to the bottom of the range. If not, the weight stays and each set below the top gets a target of one more rep.

The cautious version waits for two sessions in a row at the top before adding weight. That matches the American College of Sports Medicine advice to increase the load once you can do one or two reps more than your target, and stops one good day from pushing the weight up too soon.

It also shows how big the jump is as a percentage (the ACSM range is 2-10%), your volume load (reps × weight, added up over the sets) before and after, and the sessions that follow if you hit every target. That table is the rule applied to your numbers, not a prediction.

02 / Formula

The progressive overload formulas

Double progression

If every set ≥ top of range:
  next weight = weight + step
  next reps   = bottom of range (every set)
Else:
  next weight = weight
  next reps   = min(top, reps + 1) for each set
  • step = the smallest jump you can make (e.g. 2.5 kg with 1.25 kg plates, 5 lb with 2.5 lb plates)

With "two in a row" selected, the first session at the top is repeated before the weight goes up.

Size of the jump

Increase % = step ÷ weight × 100
ACSM range: 2-10%

With light weights a fixed step can be more than 10% (2.5 kg on a 20 kg lateral raise is 12.5%). Then add reps first, use a smaller step if you have one, or widen the rep range.

Volume load

Volume load = Σ (reps × weight) over the working sets

A common measure of how much work a session did. Adding reps or weight both raise it; the reset after a weight increase usually lowers it for a session or two.

03 / Worked example

Worked examples

60 kg in the 8-12 range: 12, 12, 12

Every set of your bench press reached the top of your 8-12 range with 60 kg on the bar, and you can add 2.5 kg.

  1. 1All three sets ≥ 12 → add weight
  2. 2Next weight: 60 + 2.5 = 62.5 kg (a 4.2% jump, inside 2-10%)
  3. 3Next reps: 8, 8, 8
  4. 4Volume load: 2,160 kg today → 1,500 kg at the new targets

Next session: 3 × 8 at 62.5 kg, then climb back towards 12.

135 lb in the 6-10 range: 10, 9, 8

You rowed 135 lb for 10, 9 and 8 reps. Your range is 6-10 and you add 5 lb at a time.

  1. 1Not every set reached 10 → keep 135 lb
  2. 2Next reps: 10, 10, 9 (one more on each set below the top)
  3. 3The session after that, one more rep on the last set gives 10, 10, 10

Next session: 135 lb for 10, 10, 9. The weight goes up to 140 lb once all three sets reach 10.

04 / Reference

Progressive overload charts and tables

How big is one step? Increase as a % of the weight
Weight+1.25 kg+2.5 kg+5 kg
20 kg6.3%12.5%25%
40 kg3.1%6.3%12.5%
60 kg2.1%4.2%8.3%
100 kg1.3%2.5%5%
140 kg0.9%1.8%3.6%

Above 10%, the jump is bigger than the ACSM range; below 2%, it is a small, safe step. Pound plates give the same pattern: 5 lb is 11% of 45 lb but 2.2% of 225 lb.

Common rep ranges by goal
GoalReps per setTypical range to progress in
Strength6 or fewer3-5 or 4-6
Muscle growth6-126-10 or 8-12
Muscular endurance12 or more12-15 or 15-20

Reps per set follow the NSCA guidelines on our one rep max calculator. The ranges to progress in are common coaching choices, not rules.

05 / Training

How to make progressive overload work

  • Keep the technique the same. A rep only counts if it looks like the last one: same depth, same range, no bouncing. Extra reps with worse form are not progress.
  • Expect it to slow down. Beginners can add weight almost every week; experienced lifters may need weeks per step. When a lift stalls for several sessions, repeat a session, take a lighter week, or change the rep range. See progressive overload and deloading.
  • Big lifts take bigger steps, small lifts smaller ones. 2.5 kg is a small step on a squat and a big one on a lateral raise; on small lifts, use the reps side of the rule longer.
  • To work out loads from a percentage of your max, use the one rep max calculator; to auto-regulate by effort, use the RPE calculator. For how many sets to do, read how many sets and reps to build muscle.

06 / Limitations

Limitations and safety

The calculator applies a rule to the numbers you type. It does not know how the sets felt, your technique, your recovery or whether the exercise suits you, so it cannot tell you that a jump is safe for you.

Double progression is one of several ways to progress. Programmes based on percentages of a max, RPE targets or set volume are also valid; pick one and run it consistently.

Stop a set if something hurts, and get advice from a qualified coach or clinician for pain or injuries.

This calculator gives an estimate for general fitness education. It is not medical advice and does not diagnose anything. If you have a health condition, are pregnant, or are new to hard exercise, check with a doctor first.

07 / FAQ

Frequently asked questions

What is progressive overload?

Progressive overload means gradually asking more of your muscles over time, usually by adding reps or weight, so they keep adapting. Without it, the same workout soon stops being a challenge.

How do you calculate progressive overload?

With double progression: choose a rep range, keep the weight until every set reaches the top of the range, then add the smallest step you can and go back to the bottom of the range. The calculator applies this to your sets and tells you the next weight and reps.

How much weight should I add each week?

Usually the smallest step you can make. The ACSM suggests raising the load 2-10% once you can do one or two reps more than your target; for most barbell lifts that is 2.5-5 kg or 5-10 lb.

Should I add reps or weight first?

Reps first, then weight. Adding a rep is a smaller step than adding a plate, so it keeps you progressing on sessions when the weight cannot go up yet.

What if I cannot do more reps or weight?

Repeat the session. If the lift stays stuck for several sessions, check sleep and food, take a lighter week, or change the rep range or exercise. Progress is rarely a straight line.

Sources

  1. American College of Sports Medicine. Progression models in resistance training for healthy adults. Med Sci Sports Exerc. 2009;41(3):687-708.
  2. Baechle TR, Earle RW, eds. Essentials of Strength Training and Conditioning. 3rd ed. Champaign, IL: Human Kinetics / NSCA; 2008.

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