Crush Probability Calculator
Rate 8 behavioral signals you've observed from your crush — eye contact, initiation, response speed, proximity, and more — to estimate the probability they like you back.
Rate the Signals
How strongly does your crush display each behavior? (1 = Not at all, 5 = Very strongly)
Reciprocation Probability
Likelihood your crush has feelings for you
Signal Strength Breakdown
How strong each behavioral signal registers.
Recommended Next Move
What to do based on the signal analysis.
The Crush Probability Calculator translates the anxious art of crush-reading into a structured behavioral assessment. Instead of endlessly analyzing "did they mean something by that text?", the calculator focuses on eight specific, observable behaviors that social psychologists have empirically linked to romantic interest — transforming ambiguous social signals into a quantified probability estimate.
The behavioral signals measured here are drawn from decades of research in interpersonal attraction. Monica Moore's foundational 1985 study in Ethology and Sociobiology cataloged 52 nonverbal flirting behaviors and found that the frequency of signals — not their individual intensity — was the strongest predictor of being approached. More recent work by Jeffrey Hall at the University of Kansas confirmed that active engagement signals (initiating contact, seeking proximity, making future plans) carry more predictive weight than passive signals (social media likes, general friendliness).
The weighting system assigns higher importance to signals that require deliberate effort and social risk. Initiating conversations (weight: 15%) and seeking physical proximity (weight: 15%) score higher because they require the person to actively overcome social inertia. Social media engagement (weight: 8%) receives a lower weight because it requires minimal effort and can be performed ambiguously. Mutual friend intelligence (weight: 12%) is weighted moderately — it's indirect but often highly reliable because people tend to confide genuine feelings to close friends.
Signal consistency — measured as the standard deviation across all eight ratings — is itself an important indicator. Research by Givens (1978) in Semiotica found that consistent positive signals across multiple channels (verbal, nonverbal, digital) are far more reliable indicators of genuine interest than a single extremely strong signal. A person who scores 3-4 across all signals is more likely interested than someone who scores 5 on eye contact but 1 on everything else, which may indicate social anxiety or cultural norms rather than attraction.
Crush Probability FAQ
Understanding attraction signals and what they really mean.
How does the Crush Probability Calculator work?
The calculator uses a weighted Bayesian-inspired probability model. You rate 8 behavioral signals on a 1-5 scale, and each signal is weighted by its empirical reliability as an indicator of romantic interest (based on social psychology research). The ratings are combined to produce an overall probability estimate that your crush reciprocates your feelings, along with a confidence tier from 'Very Likely' to 'Unlikely.'
What behavioral signals indicate romantic interest?
Research from the Journal of Nonverbal Behavior identifies several reliable indicators: sustained eye contact (especially the 'triangle gaze' between eyes and lips), initiating conversations or finding excuses to talk, quick and enthusiastic text/message responses, seeking physical proximity, engaging with your social media content, giving genuine compliments, making future plans that include you, and positive feedback from mutual friends.
Which signal is the strongest predictor?
According to a meta-analysis by Hall, Carter, Cody, and Albright (2010) in the Journal of Nonverbal Behavior, physical proximity-seeking and initiation of contact are the two strongest predictors of romantic interest. Eye contact is the third strongest. Self-disclosure (sharing personal information) and compliment frequency round out the top five. The calculator weights these signals accordingly.
How accurate is this probability estimate?
The estimate provides a data-informed starting point, not a guarantee. Human attraction is influenced by countless factors — mood, timing, personal circumstances, cultural background — that no calculator can fully capture. Studies show that even trained social psychologists correctly identify mutual romantic interest only about 55-65% of the time from behavioral cues alone. Use the result as a confidence booster or reality check, not a definitive answer.
What if my crush shows mixed signals?
Mixed signals are extremely common and often indicate ambivalence, nervousness, or uncertainty — not necessarily disinterest. The calculator handles this by averaging across all 8 signals, so strong positive signals in some areas can offset weaker ones. If your overall score falls in the 'Uncertain' range (30-55%), the best course of action is direct communication — research consistently shows that asking directly is more effective than signal interpretation.
Does this work for all genders and orientations?
Yes. The behavioral signals measured — eye contact, initiation, responsiveness, proximity, engagement, compliments, future planning, and social proof — are universal indicators of interpersonal interest across genders and sexual orientations. Research by Gonzaga et al. (2001) in Personal Relationships confirmed that nonverbal displays of love and desire are consistent across diverse relationship types.
What should I do with a high probability result?
A high probability (70%+) suggests multiple strong behavioral indicators of reciprocated interest. The recommended next step is a low-stakes 'temperature check' — invite them to a specific activity ('Want to grab coffee after class Thursday?') rather than making a grand declaration. This gives them a comfortable, concrete way to say yes and lets the connection develop naturally.