Position Size Calculator

Most people don't blow up their account with the wrong trade. They do it with the wrong size.

Before you click, the calculator tells you how big your position may be so that a mistake costs only your set risk. The size follows from your stop, not from the leverage.

Calculate for free100% free, no payment details.
Calculator · Position sizeLIVE
How much may you lose?
Where is your stop-loss?
Your position size
0 USDT
If the stop hits, you lose exactly 10 USDT. No more.
The leverage changes nothing about that, only the margin.

A single oversized trade eats up months of gains.

Most people pick the size from leverage or the gut. Sometimes 20x, sometimes all in because the setup looks so good. Then comes the one trade that was twice as big as usual.

And it wipes out weeks of progress. Not because the idea was wrong, but because the position was too big for the stop.

Anyone who derives size from risk and stop doesn't have this problem.

What the calculator gives you

Position size in USDT

From risk and stop distance, instantly. No mental math, no gut feeling, no oversized position by accident.

Risk per trade

Set how much a mistake is allowed to cost. Default 1 percent, so a losing streak doesn't take you out.

Required margin

You see how much margin your chosen leverage ties up, without leverage inflating the size.

Liquidation warning

If liquidation moves ahead of your stop, the calculator warns you. That way you notice the leverage is too high beforehand.

The right size in 3 steps

1

Set your risk

How much may this trade cost if you're wrong? For example 1 percent.

2

Set your stop

Where is your trade idea proven wrong? That's where the stop goes, not 2 percent below entry out of convenience.

3

Read off the size

The calculator gives you the position size in USDT. Exactly big enough that a stop-out costs only your set risk.

Frequently asked questions

What is the 1 percent rule?

You risk at most 1 percent of your account per trade. On 1,000 USDT that's a 10 USDT loss when your stop hits. That way you can be wrong 20 times in a row and still be alive.

Why does the stop determine the size, not the leverage?

Your position size comes from your risk divided by the stop distance. Leverage only changes how much margin you put up, not how much you lose when the stop hits. Anyone who derives size from leverage is risking blindly.

Does the calculator warn about liquidation?

Yes. Crank the leverage so high that liquidation sits before your stop and the calculator tells you you'll be liquidated before your stop even kicks in. Exactly the mistake that blows up accounts.

Does the calculator cost anything?

No. The calculator and the entire platform are free. No subscription, no paywall.

Set your risk before every trade. While your head is still neutral.

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