The Relationship Longevity Calculator looks at one specific question inside relational psychology and attachment research: what do your long-term potential actually add up to? Instead of a vague feeling, it converts the everyday signals you already notice — how often you compare new people to ex, how processed does breakup feel?, previous relationship length, ability to state needs & boundaries — into a single score you can track, compare and act on.
The model is built on attachment theory, emotional-recovery modeling and relationship-transition research, the same foundation as our flagship relationship calculator. Each input is weighted by how strongly that factor predicts real outcomes in the research; the formula and every weight are published below, so you can see exactly why your score is what it is — and argue with it if you like.
Adjust the sliders to match your situation honestly and the score updates live, along with the strongest factors pushing it up or down. Like everything on Quirkulator, the computation runs entirely in your browser: nothing you enter is ever transmitted or stored.
The formula
w1·comparison- How often you compare new people to your ex (weight +0.9)
w2·processed- How processed does the breakup feel? (weight -1.1)
w3·prior len- Previous relationship length (weight +0.6)
w4·boundaries- Ability to state needs & boundaries (weight -0.7)
w5·excitement- Excitement about dating itself (weight -0.4)
σ, μ- Sigmoid squash to 0–100, centered on typical values
How it works, step by step
- Rate each input honestly — the Relationship Longevity score is only as good as your self-assessment.
- Watch the live score and note which factor the result panel names as your strongest driver.
- Read your band below — each range comes with a concrete recommended next step.
- Change one input to simulate a change in behavior and see how much the score moves — that sensitivity is the real insight.
- Re-take the assessment after a few weeks; trends across readings mean far more than any single score.
Worked examples
A low-signal scenario
With every input set well below typical — the quiet version of this situation — the model returns 72, landing in the “Unfinished business” band. Your signals match post-processing readiness: the past is integrated, boundaries are articulate, and connection would be a want rather than a need.
A high-signal scenario
Push the main drivers well above typical and the score rises to 10 — the “Open-hearted” band. The attachment system is still in active grief. What feels like romantic hunger is likely pain relief — profoundly human, and worth naming honestly before someone new inherits it.
How to read your score
Frequently asked questions
What does the Relationship Longevity Calculator measure?
Emotional readiness signals drawn from attachment and breakup-recovery research: processing depth, healing time relative to relationship length, ex-contact, and the self-rebuilding work that predicts stable next relationships. Educational, not diagnostic.
Can this tell me whether my current relationship is a rebound?
It can tell you whether the conditions match the rebound pattern. What it cannot judge is the two of you — plenty of relationships with rebound-shaped origins mature into stable ones when both people process honestly.
Is my relationship data private?
Completely — all computation is client-side in your browser. Nothing is transmitted or stored.
Should I make relationship decisions based on this score?
Use it as a structured mirror, not a verdict. If the result names something you already suspected, that recognition — not the number — is the useful output. Big decisions deserve conversations, sometimes with a therapist.
How long should I wait after a breakup?
There is no universal number — the research keys on ratios and behaviors, not calendars. Useful signals: the breakup story has become boring to tell, your ex’s social media is uninteresting, and you want a partner rather than an anesthetic.
Are rebound relationships always a mistake?
Genuinely mixed evidence. Some studies find faster recovery and no worse outcomes; others find instability when the new bond is primarily grief-avoidance. The difference is largely what this calculator measures: processing, not time.