Use the calculator first for instant results, then scroll through the in-depth guide below to understand exactly what the output means, the formulas that sit behind it, the common mistakes that destroy trading accounts, and the broker setups that pair best with the calculation. Every section is written by traders who use these tools daily, not generic SEO filler. Jump to the calculator, the recommended brokers, or any of the deep-dive sections using the links below.
Every figure quoted on this page comes from live UK accounts opened and funded by our editorial desk, not from broker marketing material. Spreads are sampled during the London and New York sessions, execution notes are recorded from real fills, and FCA authorisation is checked against the Financial Services Register before we publish or update a page.
Use the quick links below to jump straight to the part you need. Each section is written to stand on its own, so you can skim for a single answer or read the page end to end and finish with a shortlist of brokers, a clear understanding of the costs involved, and the practical next step to take.