How Currency Exchange Rates Work

Exchange rates represent the value of one currency relative to another. They fluctuate constantly — every second of every trading day — based on supply and demand in the global foreign exchange (Forex) market, which processes over $7 trillion in transactions daily, making it the largest financial market in the world.

Rates are influenced by interest rates set by central banks, inflation levels, political stability, trade balances, and market speculation. When a country raises interest rates, its currency typically strengthens because foreign investors buy that currency to take advantage of better returns. When inflation is high, currency tends to weaken because each unit buys less.

Mid-Market Rate vs Bank Rate vs Card Rate

The rate shown in currency converters is typically the mid-market rate — the midpoint between the buy and sell prices in the wholesale currency market. This is the "real" exchange rate that banks use when trading with each other.

• Bank rate: Banks add a markup of typically 2–5% above the mid-market rate when you exchange at a branch or ATM abroad.
• Card rate: Credit and debit cards typically offer rates 1–3% above mid-market, often better than banks.
• Exchange bureau rate: Airport and tourist area bureaux often have markups of 5–15%. Avoid when possible.
• Transfer services (Wise, Revolut): Often charge the mid-market rate plus a small flat fee, making them the cheapest option for large transfers.

PKR and Common Currency Pairs for Pakistani Users

For users in Pakistan, the most commonly converted currencies are USD to PKR, SAR to PKR (for remittances from Saudi Arabia), AED to PKR (UAE), and GBP to PKR. The Pakistani Rupee's value is managed by the State Bank of Pakistan and has historically been subject to periodic devaluation. Always check live rates before making transactions, as the PKR can move significantly in short periods.

This converter fetches live rates automatically. If you are offline or the API is temporarily unavailable, it falls back to recent cached rates — always verify with your bank for large or time-sensitive transactions.