Work out food points from calories, fat and fibre — an unofficial tool.
Points = calories ÷ 50 + fat ÷ 12 − fibre ÷ 5 (up to 4 g of fibre). A food with 250 kcal, 10 g fat and 3 g fibre scores 5 points on the classic formula.
This calculator works out food points with the classic public formula and with an unofficial SmartPoints-style estimate that also uses saturated fat, sugars and protein. It is useful for comparing foods, but it is not the official Weight Watchers app and is not affiliated with or endorsed by Weight Watchers.
The current programme uses a proprietary food-scoring system that changes over time, so results will differ from the official app. Points are a tool for noticing food choices; pair them with a calorie target from the Calorie Calculator and see the Macro Calculator.
The calculator applies the standard published formulas step by step.
| Item | Value |
|---|---|
| Calories ÷ 50 | 5 |
| Fat ÷ 12 | 0.83 |
| Fibre ÷ 5 (counted up to 4 g) | −0.6 |
| Original points (rounded) | 5 |
| SmartPoints-style: calories × 0.0305 | 7.63 |
| + saturated fat × 0.275 | 0.83 |
| + sugars × 0.12 | 0.6 |
| − protein × 0.098 | −0.98 |
| SmartPoints-style (rounded) | 8 |
| Food | Original points |
|---|---|
| 150 kcal, 5 g fat | 3 |
| 250 kcal, 10 g fat | 5 |
| 400 kcal, 15 g fat | 9 |
| 600 kcal, 30 g fat | 14 |
| 100 kcal, 0 g fat, 5 g fibre | 1 |
The programme has used different formulas over time. The original one used calories, fat and fibre; later versions use saturated fat, sugar and protein too.
No. This is an independent, unofficial tool that uses published formulas. Weight Watchers is a trademark of its owner.
The official programme uses its own proprietary and regularly updated scoring, and some foods are assigned zero points.
The original formula rewarded fibre, since fibre-rich foods are more filling. It counted up to 4 g.
They simplify food choices, but weight change still depends on total energy intake.
Not if you have a history of disordered eating or a medical condition affecting diet — speak to a doctor or dietitian first.
It uses the published formula: original points = calories ÷ 50 + fat ÷ 12 − min(fibre, 4) ÷ 5 The full method and a worked example are shown on this page.
No. The calculator gives general estimates for information and education. It cannot diagnose or treat anything, so please speak to a doctor or qualified professional about your own health.
Yes. Choose centimetres or feet and inches for height, and kilograms, pounds or stone for weight; the results are converted for you.
No. Everything is calculated in your browser and nothing you enter is uploaded or saved.
