If your overhead press has been stuck at the same weight for a month, the problem usually is not your effort or your program. It is your math. The smallest jump most lifters can make is 2.5 kg per side, which adds 5 kg to the bar in one session. On a big lift like the squat, that is fine. On a press or a bench, asking your shoulders to add 5 kg in a single week is often too much, and you stall.
Fractional plates fix this. They let you add a fraction of the usual jump, so you keep progressing when the standard increment is simply too large to recover from. This is the single most underrated piece of equipment for anyone who has hit a wall on their upper-body lifts.
What fractional plates actually are
Fractional plates, also called micro plates, are small weight plates designed for tiny load increases. Where a normal gym starts its smallest plate at 1.25 kg or 2.5 lb, fractional plates go well below that.
Metric micro plates typically come in:
- 0.25 kg
- 0.5 kg
- 0.75 kg
- 1 kg
- 1.25 kg
Imperial sets usually come in 0.25 lb, 0.5 lb, 0.75 lb, and 1 lb. They are small, often machine-milled steel, and they slide onto a standard Olympic sleeve just like any other plate.
The key thing to remember is that you load them in pairs, one on each side of the bar, so the bar stays balanced. A pair of 0.5 kg micro plates adds 1 kg to the total load, not 0.5 kg. This trips up a lot of lifters, so keep the calculation simple: whatever a single plate weighs, double it to get what lands on the bar.
Why the standard jump is too big
Progressive overload is the principle that drives every gain in the gym: to get stronger, you have to gradually ask your body to do more than it did last time. The catch is the word "gradually." The best rate of progress is the smallest jump you can still recover from, repeated as often as possible.
A standard 2.5 kg per-side jump means +5 kg total. In pounds, a standard 5 lb per-side jump means +10 lb total. On a heavy squat or deadlift, adding 5 kg is a small percentage of the total, so your body absorbs it easily. But on an overhead press where you might be lifting 40 kg, a 5 kg jump is a 12.5 percent increase in one week. No one adds 12 percent to a lift week after week. That is why presses and benches stall long before squats and deadlifts do.
Micro plates let you cut that jump down to something sustainable. Instead of +5 kg, you can add +1 kg or even +0.5 kg total. It feels almost too small to matter, and that is exactly the point. Small jumps stack up over months into large gains, and they keep you out of the stall-deload-stall cycle that eats up so many training weeks.
Micro-plate increment table
Because plates load in pairs, here is exactly what each pair adds to the bar. Use this to plan your jumps.
| Micro plate (each side) | Pair loaded | Total added to bar |
|---|---|---|
| 0.25 kg | 2 plates | 0.5 kg |
| 0.5 kg | 2 plates | 1 kg |
| 0.75 kg | 2 plates | 1.5 kg |
| 1 kg | 2 plates | 2 kg |
| 1.25 kg | 2 plates | 2.5 kg |
| 0.25 lb | 2 plates | 0.5 lb |
| 0.5 lb | 2 plates | 1 lb |
| 0.75 lb | 2 plates | 1.5 lb |
| 1 lb | 2 plates | 2 lb |
Notice that a pair of 0.25 kg plates gives you a 0.5 kg total jump, which is half of the smallest jump most gyms can even make. That is the resolution you want for a stubborn press.
How to use them in practice
The strategy is simple: when a lift starts to slow down, shrink the jump instead of grinding the same weight or deloading.
- Run your normal jumps as long as they keep working. If you can add 2.5 kg per side and hit all your reps, keep doing that.
- The first week you miss reps, do not repeat the same weight blindly. Switch to a micro jump. Add a pair of 0.5 kg plates for a +1 kg total increase and try again next session.
- If even +1 kg is too much, drop to a pair of 0.25 kg plates for a +0.5 kg total jump. There is no jump too small if it keeps the bar moving up.
- Keep a log. Micro progress is invisible session to session but obvious over a training block.
This approach shines on the overhead press and bench press, but it also helps smaller and newer lifters on every lift. A 60 kg beginner adding 5 kg to a squat is making a big relative jump, and micro plates give them a gentler on-ramp. Stronger lifters use them near the top end of a program, where every kilo is hard-won.
To plan a session, load the target total into a barbell plate calculator and it will show you the exact plates per side, micro plates included. If you prefer working from a target weight down to the plates, the weight plate calculator does the same in reverse. And if you want the full framework behind why small jumps beat big ones, read our progressive overload guide.
Do you actually need them?
If all of your lifts are still climbing on standard jumps, you do not need micro plates yet. Buy them the moment a lift stalls twice in a row, or immediately if you are a smaller or newer lifter whose presses feel like they jump too far. A basic pair set of 0.25 and 0.5 kg plates is inexpensive, lasts forever, and pays for itself the first time it rescues a stalled press.
The goal is never the biggest jump you can survive once. It is the smallest jump you can repeat every week for a year. Micro plates make that possible.
Frequently asked questions
How much weight does a pair of 0.5 kg fractional plates add?
A pair adds 1 kg to the bar total, because you load one 0.5 kg plate on each side. Always double a single plate's weight to know what actually lands on the bar.
Are fractional plates only for the bench and overhead press?
They help most on upper-body lifts, where the standard 5 kg total jump is too large and progress stalls fastest. But they are useful on any lift once you slow down, and they are excellent for smaller or newer lifters on every movement.
What is the smallest useful jump I can make?
With a pair of 0.25 kg plates you can add just 0.5 kg total to the bar, half the smallest jump most gyms allow. That resolution is enough to keep almost any stalled lift creeping upward.
Can I use fractional plates instead of deloading?
Often, yes. Many stalls come from jumps that are too big, not from genuine overreaching. Shrinking your increment with micro plates lets you keep progressing without a full deload, though a true deload is still the right call when fatigue is systemic.