Forex Spread Explained (2026): Bid, Ask & Trading Costs
A plain-English guide to the bid-ask spread in forex: how it's measured in pips, why it changes by pair and session, and exactly how it eats into your trading costs.
Every time you open a forex trade, you start slightly behind. Not because the market is rigged, but because of something called the spread — the small gap between the price you can buy at and the price you can sell at. It's the most common trading cost in forex, and it's built into every position you take.
This guide is forex spread explained from the ground up, for complete beginners. We'll define every term the first time it appears, work through real numbers with a realistic account, and show you why the spread on one pair at 3pm can be triple what it was at 10am. By the end, you'll understand exactly what you're paying and how to keep those costs low.
What is the bid-ask spread?
When you look at any currency pair, you don't see one price — you see two. This is called a two-way quote.
- Bid — the price at which you can sell the base currency. It's the highest price a buyer in the market is willing to pay you.
- Ask (also called the offer) — the price at which you can buy. It's the lowest price a seller will accept.
The spread is simply the difference between them: spread = ask − bid.
Here's a concrete example. Suppose EUR/USD is quoted as:
- Bid: 1.08450
- Ask: 1.08465
The spread is 1.08465 − 1.08450 = 0.00015. In forex we measure that in pips.
What is a pip?
A pip ("percentage in point") is the standard unit of price movement in forex. For most pairs it's the fourth decimal place — 0.0001. For pairs that include the Japanese yen (like USD/JPY), a pip is the second decimal place — 0.01.
So in our EUR/USD example, a spread of 0.00015 equals 1.5 pips. Many brokers now quote a fifth decimal (called a fractional pip or "pipette"), which is why you'll often see spreads like 1.5 rather than a round 2.
Why do you start a trade at a small loss?
The moment you open a position, you're marked at the opposite side of the quote:
- If you buy, you pay the ask (higher) but your position is valued at the bid (lower).
- If you sell, you receive the bid (lower) but your position is valued against the ask (higher).
Either way, the price has to move in your favour by at least the spread before you break even. This isn't a hidden fee — it's how the market works. Understanding it early stops a lot of confusion later.
How the spread becomes a real cost: a worked example
Let's put actual money on it. First, some quick vocabulary:
- A standard lot = 100,000 units of the base currency.
- A mini lot = 10,000 units.
- A micro lot = 1,000 units.
For a pair where the US dollar is the quote currency (the second one, like EUR/USD), the approximate pip value is:
- Standard lot: $10 per pip
- Mini lot: $1 per pip
- Micro lot: $0.10 per pip
Now imagine you have a realistic $1,000 starter account and you trade 1 mini lot (0.1 standard lots) of EUR/USD with a 1.5-pip spread.
Your spread cost = 1.5 pips × $1 per pip = $1.50 per round trip (open and close).
That might sound tiny. But scale it. If you take 10 trades a day, that's $15 a day, or roughly $300 a month in spread costs alone on a $1,000 account — 30% of your capital churned through costs before you even count winning or losing trades. This is exactly why over-trading is dangerous, and why the spread deserves your attention from day one.
The same trade on a yen pair
For USD/JPY at, say, 156.20, one standard lot has a pip value of about $6.40 (it moves as the yen rate changes). A 1.0-pip spread on 1 mini lot would cost roughly $0.64. Different pairs, different pip values — always check before you assume.
Fixed spreads vs variable spreads
Brokers offer two broad pricing models:
| Type | How it works | Best for |
|---|---|---|
| Fixed spread | The spread stays the same regardless of market conditions. | Beginners who want predictable costs and trade around news. |
| Variable (floating) spread | The spread widens and narrows with liquidity and volatility. | Active traders on liquid pairs during busy sessions, who often get tighter spreads. |
Some accounts advertise "raw" spreads as low as 0.0 pips on majors, but charge a separate commission instead — for example around $7 per $100,000 traded (per standard lot, round turn). Neither model is automatically cheaper; you have to add spread + commission together to compare true cost. A commission-free account isn't free — the cost is simply baked into a wider spread.
Why the spread varies by currency pair
Two forces drive the size of a spread: liquidity and volatility.
- Liquidity is how much of a currency is being actively traded. The more buyers and sellers, the tighter (smaller) the spread. Heavily traded "major" pairs like EUR/USD, USD/JPY and GBP/USD are the most liquid, so their spreads are usually the smallest.
- Volatility is how sharply price is moving. When a pair swings violently, the party quoting prices takes on more risk that the market moves against them, so they widen the spread to protect themselves.
That's why "exotic" pairs — a major currency paired with a smaller economy's currency, like USD/ZAR (South African rand) or USD/NGN — carry much wider spreads than EUR/USD. Fewer participants and bigger swings mean higher costs. As a beginner, sticking to the major pairs keeps your costs low and your learning simpler.
Here's a rough, typical picture (real numbers vary by broker and moment):
| Pair | Category | Typical spread |
|---|---|---|
| EUR/USD | Major | 0.1 – 1.5 pips |
| GBP/USD | Major | 0.5 – 2 pips |
| EUR/GBP | Cross | 1 – 3 pips |
| USD/ZAR | Exotic | 20 – 150+ pips |
Why the spread varies by trading session
Forex runs roughly 24 hours a day, five days a week, across three main sessions: Asian (Tokyo), European (London) and US (New York). Spreads track the flow of activity:
- London and New York overlap (roughly 1pm–5pm GMT) is the most liquid window. Spreads on majors are usually tightest here.
- Late Asian session and the gap before London opens can be thinner, so spreads on some pairs widen.
- The Sunday market open and the minutes around major news releases can see spreads blow out dramatically as liquidity temporarily dries up.
This ties directly into choosing the right time frame and session to trade for consistency. If you trade a low-liquidity pair at a quiet hour, you pay for it in the spread. If you want to filter out the ugliest volatility windows entirely, our guide to volatility filters using ATR and session ranges shows you how.
Spread vs slippage: don't confuse them
The spread is a known, visible cost you can see before you click. Slippage is different — it's when your order fills at a slightly worse price than expected, usually during fast moves or news. A wide spread and slippage often show up together in volatile conditions, but they're separate ideas. If that's new to you, read our plain-English breakdown of slippage in forex next.
How to keep your spread costs low
- Trade the majors. EUR/USD and friends have the tightest spreads. Learn on these before touching exotics.
- Trade during liquid hours. The London–New York overlap gives you the best pricing on most pairs.
- Avoid trading through major news unless you have a specific plan. Spreads widen sharply around releases.
- Match your style to your costs. If you scalp (many small trades), the spread is a huge share of your cost — you need the tightest pricing possible. If you swing trade (holding days for larger moves), a 1.5-pip spread barely matters against a 150-pip target.
- Compare true cost. Add spread + commission before deciding one account is cheaper than another.
That last point about trade size matters more than beginners realise. The spread is a fixed cost per trade, so the bigger your profit target relative to it, the less it drags on your results. This is really a question of trade expectancy — the average amount you can expect to make per trade after all costs. A strategy with a 5-pip target and a 1.5-pip spread starts every trade 30% underwater on costs. A 50-pip target with the same spread starts just 3% behind. Costs don't kill you; ignoring them does.
Practise reading the spread yourself
The fastest way to make this concrete is to watch a live two-way quote move in real time. Open a free demo account — the platform most of our worked examples use — load up EUR/USD, and simply watch the bid and ask. Note the spread in the morning, then again during the London–New York overlap. Then compare it to an exotic pair. You'll see everything in this article play out on your own screen, without risking a cent. Demo first, always — a live account only comes once you're consistently profitable in practice.
While you're there, learn to read the price ladder too. Our beginner's guide to the forex order book (DOM) shows how bid and ask depth actually stack up behind the spread.
Where this fits in your bigger learning path
The spread is one piece of a much larger skill: understanding the true cost and structure of every trade you take. Combine it with solid candlestick reading and disciplined risk management, and you start to build a real edge rather than guessing.
At Forex Fluency, our courses are ranked by difficulty so you never feel lost. You start with absolute-beginner foundations — quotes, pips, lots, spreads and position sizing — and progress in order to advanced professional skills. Every course is self-paced with real worked examples, illustrations, quizzes and action steps. No recycled PDFs, no hype. You can enroll and start learning today.
Key takeaways
- The spread is the gap between the bid (sell) and ask (buy) price, measured in pips.
- You start every trade behind by the spread — price must move in your favour to break even.
- Spreads are tighter on liquid major pairs and during busy sessions; wider on exotics and in volatile or thin conditions.
- Always compare spread + commission to find your true cost.
- The bigger your profit target relative to the spread, the less it drags on results.
Ready to trade with clear eyes?
Now you know exactly what you're paying every time you click buy or sell. The next step is turning that knowledge into a repeatable, cost-aware trading process. Forex is a skill built through months of deliberate practice — not a shortcut to riches — and structured learning gets you there faster than trial and error. Browse the Forex Fluency course catalog, pick your starting rank, and begin today. Practise everything on a free demo account first, and only move to real money once you're consistently profitable.
This article is educational content, not financial or investment advice. Trading forex on margin carries a high level of risk and may not be suitable for all investors. Never trade with funds you cannot afford to lose.
Frequently Asked Questions
What is the bid-ask spread in forex?
It's the difference between the bid price (where you can sell) and the ask price (where you can buy) of a currency pair. That gap, measured in pips, is the most common trading cost in forex and is built into every position you open.
How is the forex spread measured?
In pips. A pip is usually the fourth decimal place (0.0001) for most pairs and the second decimal (0.01) for yen pairs. If EUR/USD has a bid of 1.08450 and an ask of 1.08465, the spread is 0.00015, which equals 1.5 pips.
Why does the spread change during the day?
Because liquidity changes by session. Spreads on major pairs are usually tightest during the London–New York overlap when most participants are active, and can widen in quiet hours, at the Sunday open, or around major news releases.
Why do exotic pairs have such wide spreads?
Exotic pairs like USD/ZAR or USD/NGN have fewer active traders (lower liquidity) and often larger price swings (higher volatility). Both factors push the spread wider, sometimes to dozens or hundreds of pips, which is why beginners should stick to major pairs.
How much does the spread actually cost me?
Multiply the spread in pips by your pip value. On EUR/USD, a mini lot (10,000 units) is about $1 per pip, so a 1.5-pip spread costs roughly $1.50 per round trip. On a standard lot it's about $10 per pip, so the same spread costs about $15.
Is a zero-spread or commission-free account really cheaper?
Not necessarily. Zero or raw spreads usually come with a separate commission (for example around $7 per standard lot round turn), while commission-free accounts bake the cost into a wider spread. Add spread and commission together to compare true cost.
What's the difference between spread and slippage?
The spread is a known, visible cost you see before you trade. Slippage is when your order fills at a slightly different price than expected, usually during fast markets or news. They often appear together in volatile conditions but are separate concepts.
How can I reduce my spread costs as a beginner?
Trade liquid major pairs, trade during busy sessions, avoid trading through major news without a plan, and favour strategies with larger profit targets so the fixed spread cost is a smaller share of each trade.