37% {{ t.m001 }}
{{ t.m002 }}

{{ t.m004 }}
{{ t.m005 }}

37%
{{ t.m006 }}

{{ t.m007 }} {{ t.m008 }} {{ t.m009 }}

{{ t.m010 }}
{{ t.m011 }}
{{ t.m012 }}
{{ t.m013 }}

{{ t.m014 }}

{{ t.m015 }}

{{ t.m016 }}
{{ startAge }}
{{ t.m017 }}
{{ goal }}
{{ t.m018 }}
{{ build }}{{ t.m019 }}
{{ t.m020 }}
{{ dpyStr }}{{ t.m021 }}
{{ t.m022 }}
{{ cur }}
{{ t.m023 }}
{{ already }}
{{ t.rl_iam }}
{{ t.rl_kids }}
⏱

{{ fertNote }}
👥

{{ t.pool_a }}{{ effDpyStr }}{{ t.pool_b }}{{ dpyStr }}{{ t.pool_c }}

{{ t.pool_off }}

{{ t.rl_disclaimer }}
{{ t.m027 }}
{{ sample }}
{{ t.res_of }}{{ totalExpected }}{{ t.res_pool_word }}
{{ statusLabel }}
{{ t.res_then }}
{{ howLine }}
{{ t.m029 }} {{ datedShown }} {{ t.m030 }}
{{ t.m031 }}
{{ t.m032 }}
0 {{ sample }} {{ totalExpected }}
{{ sampleNote }}
{{ t.win_line_a }}{{ startAge }}–{{ winEnd }}{{ t.win_line_b }}{{ calAge }}{{ t.win_line_c }}
{{ t.m039 }}
{{ solTitle }}
{{ solBody }}
{{ st.value }}
{{ st.label }}

{{ t.mx_title }}

{{ t.mx_sub }}

{{ r.name }}

{{ t.mx_hint2 }}
{{ t.tour_kicker }} · {{ tourProgress }}

{{ t.tour_q }}

{{ t.tour_hint }}
37
{{ t.wm_kicker }}
{{ hwmName }}
{{ hwmElo }}

{{ wmLead }}

{{ p.rank }} {{ p.name }} {{ p.elo }}

{{ t.wm_prov }}

{{ t.wm_warn }}

{{ t.test_locked_t }}

{{ t.test_locked_b }}

{{ t.ip_add_t }}

{{ t.ip_add_sub }}

{{ t.ip_bar_a }}{{ barName }}{{ t.ip_bar_b }}{{ barElo }}{{ t.ip_bar_c }}
{{ t.ip_inplay }}
{{ curName }}
✦ {{ t.uni_tag }}

{{ leadLine }}

{{ t.ip_cleared }}
{{ t.rf_banner }}
{{ t.cat2_title }}
{{ c.label }} {{ c.status }}

{{ t.rf_sub }}
{{ t.ci_kicker }} · {{ ciProgress }}

{{ ciQ }}

{{ ipLastLine }}

{{ t.ip_more_a }}{{ checkinsLeft }}{{ t.ip_more_b }}
{{ t.ci_cool_t }}

{{ t.ci_cool_b }}

{{ ciCoolNext }}

{{ t.th_sub }}
{{ t.m089 }}

{{ v2Title }}

{{ v2Body }}

{{ f.value }}
{{ f.label }}

{{ catSummary }}
✦ {{ t.uni_kicker }}

{{ t.uni_exp }}

{{ t.card_ask }}

{{ cardMsg }}

{{ t.m095 }}

{{ t.m096 }}
{{ t.m097 }}
{{ t.m098 }}
{{ t.m099 }}
{{ t.m100 }}
{{ t.m101 }}
{{ t.m102 }}
{{ t.m103 }}
{{ t.m104 }}
{{ t.m105 }}
{{ t.m106 }}
{{ t.m107 }}

{{ t.m108 }}

{{ t.m109 }}
{{ t.m110 }}
{{ t.m111 }}
{{ t.m112 }}
{{ t.m113 }}
{{ t.m114 }}
{{ t.m115 }} {{ t.m116 }}
{{ t.m117 }}
{{ t.m118 }}
{{ t.m119 }}

{{ t.m120 }}

{{ t.m121 }} {{ t.m122 }} {{ t.m123 }}

{{ t.m124 }} {{ t.m125 }}{{ t.m126 }} 37%.

{{ t.m127 }}

{{ t.m128 }} {{ t.m129 }} {{ t.m130 }}

{{ t.m131 }}
{{ t.m132 }}

{{ t.m133 }} {{ t.m134 }}{{ t.m135 }}

{{ t.m136 }}

1
{{ t.m137 }}
{{ t.m138 }}
2
{{ t.m139 }}
{{ t.m140 }}

{{ t.m141 }}

{{ t.m142 }}

{{ t.m143 }} {{ t.m144 }}{{ t.m145 }}

{{ t.m146 }}

{{ t.m147 }} {{ t.m148 }} {{ t.m149 }}

{{ t.age_t }}

{{ t.age_intro }}

{{ t.age_fert_h }}

{{ t.age_fert_b }}

{{ t.age_pool_h }}

{{ t.age_pool_b }}

{{ t.age_bottom_h }} {{ t.age_bottom }}

{{ t.m150 }}

{{ t.m151 }}

{{ t.sub_title }}

{{ t.sub_text }}

{{ subMsg }}

{{ t.sub_consent }}

{{ t.sv_title }}

{{ t.sv_intro }}

{{ t.sv_restoring }}

{{ t.sv_deleted }}

{{ t.sv_badcode }}

{{ t.sv_error }}
✓

{{ svStatus }}

{{ t.sv_code_intro }}

{{ acctToken }}

{{ t.sv_private }}

{{ t.sv_email_why }}

{{ svEmailMsg }}

{{ t.sv_error }}
© The 37% Rule {{ t.foot_res }} {{ t.foot_info }} {{ t.foot_poster }} {{ t.foot_stats }}
{{ t.foot_privacy }} {{ t.foot_terms }}

What is the 37% Rule?

The 37% rule comes from the mathematics of optimal stopping (the "secretary problem"). It says: spend the first 37% of your dating window just learning — no commitments — then commit to the first person who beats everyone you met while learning. Stop too early and you settle; stop too late and the best people are gone.

This site turns the math into a practical tool. Estimate your dating window, rank the people you've dated to find your personal bar, then track the person you're seeing now with quick check-ins over time. When they clear your bar with no dealbreakers — and your learning phase is done — the verdict says invest.

Free, no ads on your data, private by default: everything stays on your device unless you choose to save it. Available in English and Vietnamese — đọc bằng tiếng Việt →