Cross rate explained: how non-USD FX pairs are priced
By Ken Chigbo, Founder, KenMacro. Published 2026-05-13.
Quick answer
A cross rate is the exchange rate between two currencies where neither is the US dollar. Pairs such as EUR/GBP, AUD/JPY and CHF/CAD are cross rates. Historically they were calculated by combining two USD quotes, and that derivation still drives liquidity, spread behaviour and correlation patterns on retail platforms.
What is cross rate?
A cross rate is the price of one non-USD currency expressed in another non-USD currency. Examples include EUR/GBP, EUR/JPY, AUD/NZD, GBP/CHF and CAD/JPY. Because the global interbank market is dollar-centric, most cross rates are derived synthetically by combining two USD-denominated quotes. For EUR/GBP, the implied rate equals EUR/USD divided by GBP/USD. Major banks now stream direct cross liquidity in the most active pairs, but pricing engines on retail platforms still reference the underlying USD legs, which is why cross spreads typically widen when either USD leg becomes thin.
How traders use cross rate
Retail traders use cross rates to express macro views that the dollar would otherwise obscure. A trader bullish on the euro versus the pound looks at EUR/GBP directly rather than running two separate USD trades. Institutional desks treat crosses as relative-value instruments, comparing rate differentials, terms-of-trade shifts and risk sentiment between the two underlying economies. On the mechanics side, crosses generally carry wider spreads than the parent USD majors because the market maker hedges through two legs. Liquidity is deepest during the overlap of the two relevant sessions: EUR/GBP is tightest during the London morning, AUD/JPY during the Asian session, and CAD/CHF tends to widen sharply outside European and North American hours. Carry traders also focus on crosses such as AUD/JPY and NZD/CHF where rate differentials are pronounced.
Worked example of a cross rate calculation
Assume EUR/USD is quoted at 1.0850 and GBP/USD is quoted at 1.2700. The implied EUR/GBP cross rate is 1.0850 divided by 1.2700, which equals roughly 0.8543. If a market maker streams EUR/GBP at 0.8545, the two-pip premium over the synthetic rate reflects hedging costs and the bid-ask of both USD legs. When EUR/USD rises faster than GBP/USD, EUR/GBP appreciates; when sterling outperforms the euro on a USD basis, EUR/GBP falls. This is why crosses can move sharply even when the underlying majors look quiet, since the relative move between the two USD legs is what matters.
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Frequently asked
Why are cross rate spreads wider than EUR/USD or GBP/USD?
Cross rate spreads are typically wider because the market maker must hedge through two underlying USD pairs rather than one. Each leg carries its own bid-ask, and the costs stack. A pair like EUR/GBP combines EUR/USD and GBP/USD risk, so the quoted spread reflects both. Direct cross liquidity exists at the interbank level for the most active crosses, but retail pricing engines still reference the USD legs, which keeps cross spreads structurally above the majors.
Which cross rates are the most liquid?
The most liquid crosses are EUR/GBP, EUR/JPY, EUR/CHF, GBP/JPY and AUD/JPY. These pairs benefit from active two-way flow between large reserve currencies and deep derivatives markets. Less liquid crosses include CAD/CHF, NZD/CAD and AUD/NOK, where spreads widen sharply outside the relevant trading sessions. Liquidity is also time-dependent: EUR/GBP is tightest during the London session, while yen crosses see the most flow during Tokyo and the early London overlap.
Is a cross rate always derived from USD pairs?
Historically yes, and the convention still holds for calculation purposes. The dollar is the global vehicle currency, so most price discovery flows through USD pairs first. However, the largest banks now stream direct cross liquidity in pairs such as EUR/GBP and EUR/JPY without routing through the dollar each time. On retail platforms, the displayed cross price is effectively a synthetic quote built from the two USD legs plus a hedging mark-up.
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