ModusGolf Tools & Calculators
A free set of hands-on golf calculators to help you plan, measure, and make more confident decisions on the course — no sign-up required, and your inputs stay in your browser.
Golf Handicap Index Calculator
Estimate your handicap index from your recent rounds — enter each score with its course rating and slope to see the differentials, how many count, and your index
Golf Handicap Differential Calculator
Work out a single round's score differential from your score, the course rating, and the slope — the normalised building block that feeds your handicap index
Golf Course Handicap Calculator
Convert your handicap index into the strokes you actually receive on a set of tees using the slope, course rating, and par
Stableford Points Calculator
Score a round under the Stableford system — enter each hole's par, strokes, and strokes received to see the points per hole and your total
Golf Swing Speed to Distance Calculator
Estimate ball speed, carry, and total distance from your clubhead speed and smash factor — see what your swing speed is worth off the tee
Golf Shot Distance Adjuster
See how far your shot really plays — adjust a stock carry for temperature, altitude, and uphill or downhill elevation to pick the right club