How Strong Is This Friendship — Really?

Not all friendships are equal, and most people have a vague sense of which relationships are deep versus surface-level — but rarely a structured way to evaluate them. The Friendship Strength Score quantifies the quality of a specific friendship across six research-backed dimensions, producing a 0–100 score that tells you whether a friendship is thriving, coasting, fading, or one-sided. The six dimensions: Reciprocity & Effort (20%) — whether the investment in the friendship flows both ways; Trust & Authenticity (20%) — whether you can be genuinely honest with this person and rely on them; Shared History & Context (15%) — the depth and duration of shared experience that makes the friendship irreplaceable; Communication Quality (18%) — not frequency, but the quality and ease of your conversations; Emotional Support (15%) — whether this person shows up when things are actually hard; and Personal Growth (12%) — whether the friendship brings out better versions of both people. The result includes a radar chart of your friendship profile, a scenario comparison, a dimension breakdown table, and a specific action plan — whether to invest more deliberately, have a direct conversation, or simply appreciate what the friendship already is. Strong friendships are one of the most robust predictors of long-term wellbeing. This calculator helps you see them clearly.