Log what you did today. Each action carries a fixed weight, positive or negative. The week adds up to one number — and to a reading across all 17 Goals.
These weights are a DataSpeaks editorial rubric, not an official measure. No government or UN body publishes a per-person SDG score. Each action is placed on a −5 to +5 ladder by how much it changes, how often it can be repeated, and how far the effect travels beyond you. The ladder is published here so you can argue with it.
Daily caps stop repeat-tapping from inflating a score. A week is Monday to Sunday; the meter resets on Monday and the previous week is kept.