Starting Strength Warm-Up Calculator: How It Works

The Starting Strength warm-up calculator works out the warm-up sets and the work sets for the barbell lifts in the Starting Strength program. You enter your planned work-set weight and the calculator returns a set-by-set warm-up progression with the number of reps for each set. It is based on the warm-up scheme described in Mark Rippetoe’s book Starting Strength: Basic Barbell Training, which uses empty-bar sets, then jumps of roughly 10–15% of the work weight, and a final acclimation set at about 50% of the work weight.

Formula

The Starting Strength warm-up scheme is not a single equation but a set of rules. For each lift (squat, bench press, deadlift, overhead press, power clean), the program recommends:

• Two sets of 5 reps with the empty bar (45 lb / 20 kg for a standard Olympic barbell).
• One set of 5 reps at about 50% of your work-set weight.
• One set of 3 reps at about 75% of your work-set weight.
• One set of 2 reps at about 85–90% of your work-set weight.
• Then your work sets (typically 3 sets of 5 reps for the squat, bench, and overhead press; 1 set of 5 for the deadlift).

Many lifters simplify this by using fixed jumps (e.g., 10–15 lb increments) from the empty bar to the work weight, aiming for about 4–5 warm-up sets. The calculator above uses the simplest version: two empty-bar sets, then three weighted sets with a step you choose (default 10 lb), and the final set is your work weight. The formula for the weighted sets is:

Warm-up weight = Bar weight + (Set number − 2) × Increment

where Set number is 3, 4, and 5. The last warm-up set is the work weight itself (the calculator shows it as set 5).

Worked Example

Using the default values: work-set weight = 225 lb, bar = 45 lb, increment = 10 lb, work-set reps = 5.

1. Empty bar sets: 2 × 5 × 45 lb
2. Set 1 (first weighted): 45 + 10 = 55 lb × 5 reps
3. Set 2: 45 + 20 = 65 lb × 3 reps
4. Set 3: 45 + 30 = 75 lb × 2 reps
5. Set 4 (work set): 225 lb × 5 reps (the calculator shows this as set 5)

The calculator outputs 5 warm-up sets (including the two empty-bar sets), and the final set weight equals your work weight. The numbers match the default output: 5 warm-up sets, 2 empty-bar sets, and set weights of 55, 65, and 75 lb before the work set.

Why Warm-Up Sets Matter

Warming up serves two purposes: it increases muscle and core temperature, and it prepares the nervous system for heavy lifting. Doing too little can lead to injury or a poor first work set; doing too many heavy warm-ups can fatigue you before the actual work. The Starting Strength method is deliberately simple—it uses low-rep sets at increasing weights so you get acclimated without accumulating fatigue. The empty-bar sets also let you practice your technique and groove the movement pattern.

How to Choose the Right Increment

The increment (the jump between warm-up sets) depends on your work-set weight and your experience. A common rule of thumb is:

• For work sets under 135 lb (61 kg), use 5–10 lb jumps.
• For work sets between 135 and 225 lb, use 10–15 lb jumps.
• For work sets above 225 lb, use 15–20 lb jumps.

If you are a beginner, err on the side of smaller jumps—more warm-up sets are fine. If you are advanced, you might skip the empty-bar sets for lifts like the deadlift (many lifters start with 135 lb). The calculator lets you adjust the increment to match your preference.

Common Mistakes and Adjustments

One frequent mistake is making the warm-up sets too heavy. The warm-up is not a workout; it should leave you feeling ready, not tired. Another mistake is rounding weights to the nearest 5 lb when your gym has 2.5 lb plates—that is fine, but be consistent. Also, the calculator assumes you have a standard 45 lb barbell; if you use a 35 lb women’s bar, change the bar weight input. For the deadlift, many lifters skip the empty-bar sets because the bar is already at the correct height, but the calculator still shows them—you can simply ignore them.

Limits of the Calculator

This calculator is a general tool, not a substitute for the book. The actual Starting Strength warm-up includes specific percentages (50%, 75%, 90%) that vary slightly by lift and by the lifter’s training status. The calculator uses a linear increment, which is a practical approximation. It also does not account for warm-up sets for accessory lifts or for the power clean, which has its own scheme. Always listen to your body—if a warm-up set feels too heavy or too light, adjust accordingly.

Frequently Asked Questions

Do I need to warm up for every lift?

Yes, but the number of sets can be reduced for later lifts in the same session. For example, after squatting, your bench press warm-up can be shorter because you are already warm. Many lifters do 3–4 warm-up sets for the second lift instead of 5.

Can I use this calculator for the deadlift?

Yes, but you may want to start with a weight that is not the empty bar. Many lifters begin deadlift warm-ups at 135 lb (or 95 lb for lighter lifters). The calculator still works; just set the bar weight to your starting point.

What if my work-set weight is less than the bar weight?

That is not possible with a standard barbell (45 lb). If you are using a lighter bar or dumbbells, enter the actual bar or dumbbell weight. The calculator will show a negative increment, which is not useful—so always ensure your work weight is greater than the bar weight.

How many warm-up sets is too many?

For most people, 4–6 warm-up sets are enough. If you are doing more than 6, you are likely wasting energy. If you are doing fewer than 3, you may not be adequately prepared. The calculator’s default of 5 is a good middle ground.

Should I rest between warm-up sets?

Keep rest short—about 60–90 seconds. The goal is to stay warm, not to recover from a hard set. As the weight gets closer to your work set, you can rest a bit longer (up to 2 minutes) before the first work set.

Does the warm-up change if I’m doing 3 sets of 5 vs. 1 set of 5?

No, the warm-up is the same regardless of the number of work sets. The work-set reps input is informational; it does not affect the warm-up weights. The Starting Strength program uses the same warm-up for both.

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in weight | Work-set weight | lb | 225 | 0 | 1000
in bar | Bar weight | lb | 45 | 0 | 200
in inc | Increment step | lb | 10 | 1 | 100
in reps | Work-set reps | reps | 5 | 1 | 12
out warmups | Warm-up sets | - | 5 | 0
out empty | Empty bar sets | - | 2 | 0
out set1 | Set 1 weight | lb | bar + 0 * sqrt(weight - bar) | 0
out set2 | Set 2 weight | lb | bar + inc * 1 + 0 * sqrt(weight - bar) | 0
out set3 | Set 3 weight | lb | bar + inc * 2 + 0 * sqrt(weight - bar) | 0
out set4 | Set 4 weight | lb | bar + inc * 3 + 0 * sqrt(weight - bar) | 0
out set5 | Set 5 weight | lb | weight | 0