Calculators

The Rule of 72 is a quick mental-math shortcut for estimating how long it takes a growing amount to double, given a fixed periodic growth rate.

A pip is the smallest standardized price movement in forex and index spread betting, and knowing exactly what one pip is worth in your account currency

The Union Jack Trixie sits between the Trebles and Patent versions of this bet: nine selections in the familiar 3×3 grid, but each of the eight lines

Rule 4 deductions catch out more bettors than almost any other quirk of horse racing wagering. When a horse is withdrawn too close to the off for bookmakers

Player Efficiency Rating (PER) condenses a basketball player’s entire box score into a single per-minute number, weighting positive actions like

The Union Jack Trebles is the simplest member of the Union Jack family – nine selections in a 3×3 grid, but each of the eight lines (three rows

The Relative Strength Index, or RSI, is one of the most widely used momentum indicators in financial spread betting. It measures how fast and how far a

A Patent is a classic multiple bet made up of 3 selections, combined into 7 separate bets: 3 singles, 3 doubles, and 1 treble. Unlike a straight treble

The Union Jack Round Robin takes the familiar 3×3 grid structure – nine selections forming eight lines across rows, columns, and diagonals –

A Round Robin is the flexible cousin of the fixed-format multiples like the Trixie or Yankee. Instead of locking you into one specific combination of doubles