Futures Contracts Calculator

Work out profit or loss, margin required, and leverage on a futures position using entry price, exit price, contract multiplier, number of contracts, and margin per contract.

Quick Facts

P&L formula
(Exit − Entry) × Multiplier × Contracts
For a long position; a short position reverses the sign since it profits when price falls.
Leverage
Notional value ÷ Margin required
Futures require posting only a fraction of contract value as margin, which magnifies both gains and losses.

Your Results

Calculated
Profit / loss
-
Total gain or loss on the position
Margin required
-
Initial margin × number of contracts
Return on margin
-
P&L as a percentage of margin posted
Notional value
-
Total contract value controlled

Ready

Enter entry price, exit price, contract multiplier, contracts, and margin, then press Calculate.

How the Futures Contract Calculator works

A futures contract obligates the buyer to purchase — and the seller to deliver — a set quantity of an underlying asset at a set price on a future date. Most traders never hold a contract to delivery; instead they close the position with an offsetting trade before expiration, and the profit or loss on that round trip is simply the price change multiplied by the size of the position. This calculator applies that standard mark-to-market formula.

The formula

For a long (buy) position:

P&L = (Exit price − Entry price) × Contract multiplier × Number of contracts

For a short (sell) position, the price-change term reverses, since a short position profits when the price falls:

P&L = (Entry price − Exit price) × Contract multiplier × Number of contracts

The contract multiplier (also called the contract size) converts a one-unit price move into a dollar amount — 1,000 barrels for a crude oil futures contract, $50 per index point for an E-mini S&P 500 contract, 5,000 bushels for a corn contract, and so on. Margin required is the initial margin per contract set by the exchange or broker, multiplied by the number of contracts held. Notional value is the full contract value controlled — entry price × multiplier × contracts — and leverage is notional value divided by margin, showing how much exposure each dollar of margin controls.

Worked example

Take a long position of 2 contracts, entry price $100, exit price $108, contract multiplier 500 units, and initial margin of $5,000 per contract. The price moved $8 in the trader's favor, so P&L = $8 × 500 × 2 = $8,000.00. Margin required is $5,000 × 2 = $10,000, so the return on margin is $8,000 / $10,000 = 80%. Notional value is $100 × 500 × 2 = $100,000, giving leverage of $100,000 / $10,000 = 10× — roughly every 1% move in price moved the margin balance by about 10%.

Why leverage cuts both ways

  • Amplified gains and losses: because margin is only a fraction of notional value, the same dollar price move produces a much larger percentage change in the margin account than in the underlying asset itself.
  • Daily mark-to-market: real futures accounts settle gains and losses each trading day, not only at the close of the position, and can trigger a margin call if losses erode the posted margin below a maintenance level.
  • Position sizing: the number of contracts is the main lever a trader controls — doubling contracts doubles both P&L and margin required, leaving the leverage ratio unchanged.

What this calculator does not include

This is a straightforward profit/loss, margin, and leverage calculation. It does not account for brokerage commissions and exchange fees, day-to-day mark-to-market cash flows, maintenance margin or margin-call thresholds, rollover and roll-yield effects near contract expiration, or the tax treatment of futures gains. Treat the output as a starting point for understanding a position's mechanics, not as trading or investment advice.

Frequently Asked Questions

How is futures contract profit or loss calculated?
P&L = (Exit price − Entry price) × Contract multiplier × Number of contracts for a long position; a short position reverses the sign, since it profits when the price falls. The contract multiplier converts a price move into a dollar amount — for example, $50 per index point or 1,000 barrels per contract.
What is the difference between margin and notional value?
Notional value is the full contract value controlled by the position (entry price × multiplier × contracts). Margin is the smaller deposit — often a fraction of notional value — that a broker requires to hold the position. This calculator computes margin required as the initial margin per contract you enter, multiplied by the number of contracts.
How does going long versus short change the result?
A long (buy) position profits when the exit price is higher than the entry price. A short (sell) position profits when the exit price is lower than the entry price — the calculator reverses the price-change sign for a short position so the P&L reflects that.
What is leverage and why does it matter for futures?
Leverage is notional value divided by margin posted. Because futures margin is only a fraction of notional value, small price moves produce proportionally larger percentage gains or losses on the margin — this calculator reports both the return on margin and the leverage ratio so that amplification is visible.

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