Forex basics

What Is the Spread in Forex? How It Is Measured and What It Costs

By the JustCharts team · Updated · 5 min read

Quick answer

The spread is the difference between the bid price (where you can sell) and the ask price (where you can buy). If EUR/USD is quoted 1.10000 / 1.10010, the spread is 1 pip. You pay it on every trade: on one standard lot of EUR/USD, a 1-pip spread costs about $10. Spreads widen when liquidity is thin, such as around big news, rollover and weekends.

Key facts

Spread
ask price − bid price
Cost of a trade
spread (pips) × pip value × lots
1-pip spread, 1 lot EUR/USD
≈ $10
Widest spreads
news releases, rollover, Sunday open
Tightest spreads
major pairs in the London–New York overlap

Bid, ask and spread

Because you buy at the ask and could only sell immediately at the bid, every new position starts slightly negative by the size of the spread.

How to calculate the cost of the spread

Spread cost = spread in pips × pip value per lot × number of lots

Example: GBP/USD at 1.30000 / 1.30015 has a 1.5-pip spread. On 0.5 lot ($5 per pip): 1.5 × $5 = $7.50 per trade. If you trade 10 times a day, that is $75 a day before any profit.

Fixed vs variable spreads, and commissions

When do spreads widen?

Scalpers and short-term traders feel spreads the most, because the spread is a larger share of a small target.

Frequently asked questions

What is a good spread in forex?

On EUR/USD, under about 1 pip (including commission) is competitive for retail traders. Minor and exotic pairs naturally have wider spreads.

Why does my trade start in a loss?

Because you bought at the ask and the position is valued at the bid (or vice versa for a sell). That small loss is the spread.

Why did the spread suddenly widen?

Liquidity dropped — usually because of a news release, the daily rollover, the weekend open or a holiday. Spreads normally narrow again once liquidity returns.

Put it into practice

Live charts, an economic calendar and trading calculators — free with a JustCharts account.

Check upcoming news before you trade

This article is for education only and is not financial advice. Trading leveraged products carries a high risk of losing money. Contract sizes, trading hours and leverage limits vary by broker and country — always check your own broker’s specifications.