About GILT Calculator

GILT Calculator is an independent UK tool that helps private investors analyse government bonds (gilts) quickly and accurately. We turn raw market prices into the numbers that actually matter — yield to maturity, running yield, capital gains and after-tax returns — without the spreadsheets.

Who we are

The site is built and maintained by a small UK-based team with backgrounds in software and fixed-income investing. Our editorial content is produced and reviewed by the The GILT Calculator Editorial Team, which is responsible for the accuracy of the guides and analysis published on this site.

Where our data comes from

Gilt prices are sourced from market data and refreshed roughly every 15 minutes during market hours. Every yield and return figure shown on the site is calculated from that price data using the same transparent engine — there are no hand-picked or fabricated numbers. You can read exactly how each figure is derived on our methodology page.

Important disclaimer

GILT Calculator provides information and tools, not financial advice. Bond prices and yields move daily and your capital is at risk. Figures are estimates for illustration and assume bonds are held to maturity. Always do your own research or consult a regulated financial adviser before investing.