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Copy trading calculator

What one copied loser costs every account at once, and what the accounts and the copier cost a month.

Updated 5 November 2026. Runs in your browser; nothing you type is uploaded.

Example: $80 losers, $1,000 daily limit$40 left today

The leader and every follower.

0 if your firm has none.

Balance minus the floor, on the tightest account.

One per platform per firm, e.g. a Tradovate login at one firm and a Rithmic login at another.

A firm's accounts on one platform share one login, so they can't be split to fit a plan.

Evaluation subscription or data fee; 0 to leave out.

One stopped-out trade, copied
$400

$80 on each of 5 accounts: 4 × 40 ticks × $0.50 a tick. A copier copies the loser as faithfully as the winner, so every account takes it at once.

Each account, and the copier plan
Daily loss limit12 full losers fit before it (one is 8% of it)
Drawdown floor24 full losers fit before it (one is 4% of the room)
What stops the day firstThe daily limit, on every account at the same trade
Tradesyncer plan it needsBasic: 5 accounts on 1 login, up to 5 on one (Up to 10 per connection (total of 20)), $49 a month
Copier cost per account$9.80 a month
Accounts plus copier$49 a month ($0 for the accounts)

Arithmetic on the numbers you enter: no commissions, slippage or fill differences between accounts. Plan prices and limits are Tradesyncer's pricing page, read 2026-11-05. How many accounts your firm lets you hold, and whether it lets you copy at all, is in the copy trading rules checker.

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Writing about it instead? Cite the method and link the page:

The math: risk on all accounts = contracts × stop ticks × tick value × accounts

The example, worked

The calculator's opening numbers.

5 accounts each take 4 MNQ with a 40-tick stop. At $0.5 a tick that is $80 an account and $400 across all 5 when the stop is hit. With a $1,000 daily limit, 12 such losers fit before it on every account; with $2,000 to the drawdown floor, 24. All 5 accounts sit on one login, so Tradesyncer's Basic plan covers them at $49 a month, $9.8 an account.

Sizing when every account takes the same trade

The copier doesn't spread risk: it repeats it.

Five accounts copying one strategy are one bet five times over. The winners arrive together and so do the losers, so the question for each account is the same as for one: how many full losers in a row before its daily limit, and before its drawdown floor? Size so your worst normal day fits inside the daily limit with room left, and remember that a trailing floor moves up with every new high, so the room you enter is today's, on the tightest account. Firms treat a copied hedge, such as a copier lag that leaves one account long and another short, as your hedge: check your firm's rule in the copy trading rules checker before you connect accounts.

For a single account, the daily loss limit calculator and the trailing drawdown calculator work the same limits in more detail, and the futures tick value calculator turns any stop into dollars.

Tradesyncer's plans

From its pricing page, read 2026-11-05. A login is one broker or platform login; Tradesyncer allows one per platform per firm.

PlanMonthlyBilled yearlyLoginsAccounts
Basic$49$412 a year ($34 a month)2Up to 10 per connection (total of 20)
Pro$99$832 a year ($69 a month)4Up to 20 per connection (total of 80)
Flex$149$1,252 a year ($104 a month)Unlimited120 by default, with the option to add more as needed

7-day free trial · Card required. Charged on day 7. Cancel before then. Flex can add accounts past 120, at a price Tradesyncer doesn't publish. Prices are from its pricing page. A copier that comes with your platform (TopstepX, Tradovate group trading) needs no separate plan where your firm allows it; then only the risk rows above apply to you.

We're in Tradesyncer's affiliate programme and no other copier's: if you sign up through our partner link and pay, Tradesyncer pays us a share. Every copier named here is described from its own pages, and every firm's rule from the firm's, so the answer is the same either way.

We sell the Prop Firm Challenge Toolkit, a TradingView indicator that shows your daily-loss and drawdown floors in dollars on your chart from the rules and balance you enter.

Method and privacy

Method: Risk per account = contracts × stop ticks × tick value (CME tick values); losers that fit = the limit ÷ that risk, rounded down, a loss landing exactly on a limit counting as reaching it. Tradesyncer's plans are its pricing page, read 2026-11-05. No commissions, slippage or fill differences.

Calculations run entirely in your browser — nothing you type is uploaded. Your last numbers stay in this browser so you can pick up where you left off; Forget them clears them. A link with your numbers carries them after the # sign, which browsers do not send to servers, and the page takes them out of the address before any analytics loads. Copy and download actions save your calculation locally. The site may record coarse tool actions under its privacy policy, without inputs, results, file contents or filenames.

Common questions

How much does copy trading risk across several prop accounts?

Every account takes the same trade, so one loser costs each account its full stop at once: 4 MNQ with a 40-tick stop is 4 × 40 × $0.50 = $80 an account, $400 across 5 accounts. Each account's daily limit and drawdown floor then set how many of those losers it can take, and they all hit the floor on the same trade.

How much does Tradesyncer cost?

On its pricing page on 2026-11-05: Basic $49 a month (2 logins, up to 10 accounts on each, 20 in all), Pro $99 (4 logins, 20 on each, 80 in all) and Flex $149 (unlimited logins, 120 accounts by default). Billed yearly they are $412, $832 and $1,252 a year (the page rounds them to $34, $69 and $104 a month). There's a 7-day free trial with a card, and payments are non-refundable except at Tradesyncer's discretion, with a 20% fee.

Which Tradesyncer plan do I need for my accounts?

Count your logins, one per platform per firm: a Tradovate login at one firm and a Rithmic login at another are two, and each firm's accounts on one platform share its login. Basic holds 2 logins with up to 10 accounts each, Pro 4 with up to 20 each, and Flex unlimited logins up to 120 accounts. The calculator picks the cheapest plan that fits your logins and your busiest login.

Does copy trading make passing more likely?

No. A copier repeats one strategy on more accounts: the same edge, the same losers, at the same moment. It multiplies a win and a loss alike, and one bad day can take every account to its floor together. Size each account so the day you fear stays inside its daily limit.

Rehearse the rules before they cost a payout

  • Prop challenge practice Trade a prop-style challenge on real gold and Bitcoin replays with the daily-loss and drawdown rules switched on. The first challenge day is free.
  • Prop Firm Challenge Toolkit (.pine) Your daily-loss limit and drawdown floor (static, trailing end-of-day or trailing intraday) on the TradingView chart, with a sizer that turns risk % and stop into a size. It uses the numbers you enter; it does not read your broker. $29 once.

Goes deeper

Limits and trading risk

These tools calculate from your inputs, supported historical records or explicitly labelled teaching examples. They do not verify a live account, predict future returns or confirm that a broker or prop-firm rule has been met. Missing costs, floating losses and changed market conditions can materially change outcomes. Trading can lose the capital committed to it; check the stated method and your account specifications.

Read the risk disclosure