Love & Relationship Calculators
Age Gap Calculator
Get the exact age difference between two people in years, months, and days, calculated precisely from their two birthdates instead of rounded guesswork.
Anniversary Calculator
Find the exact number of days remaining until your next relationship or wedding anniversary, plus which numbered milestone year that anniversary marks.
Argument Recovery Time Calculator
Estimate emotional recovery time after an argument based on intensity and your relationship's communication quality.
Breakup Recovery Time Calculator
Estimate a rough breakup recovery timeline using the popular half-the-relationship-length rule of thumb, with the exact formula and worked examples shown.
Compatibility Calculator
Compare two birthdates using numerology life path numbers and see the exact digit-reduction formula behind this lighthearted compatibility scoring game.
Date Cost Split Calculator
Calculate an income-proportional split of date costs between partners based on their respective monthly incomes.
Date Night Frequency Calculator
Get a recommended date night frequency based on your relationship length and whether you have children.
Dating Age Range Calculator
Apply the classic half-your-age-plus-seven social rule to find the minimum and maximum dating age range it traditionally suggests for your current age.
Friendship to Love Calculator
A lighthearted, fun calculator estimating friendship-to-love potential from two names, for entertainment purposes only.
Long Distance Relationship Calculator
Turn a visit schedule into the exact percentage of the year you spend together, plus the annual travel distance and cost involved in the relationship.
Love Calculator
Turn two names into a fun percentage score using a classic letter-numerology game, with the exact formula, worked examples, and score-band verdicts explained.
Love Language Score Calculator
Calculate your primary love language from scores across the five love languages: words, acts, gifts, time, and touch.
Marriage Age Predictor Calculator
Project a possible marriage date and your age at that point, based on your relationship start date and how many years you expect to date before marrying.
Proposal Timing Estimator
See how your relationship length compares to commonly cited median proposal timing statistics.
Relationship Investment Balance Calculator
Calculate the balance of time each partner invests in the relationship based on weekly hours devoted.
Relationship Length Calculator
Calculate exactly how long a relationship has lasted in years, months, and days, using calendar-accurate date math instead of a rough back-of-envelope estimate.
Relationship Milestone Timeline Calculator
See commonly cited relationship milestones and how your relationship length compares to general averages.
Soulmate Compatibility Calculator
Score a zodiac-sign pairing using traditional elemental astrology compatibility, with the full Fire, Earth, Air, and Water element scoring table shown.
Text Response Time Calculator
Compare your average text response time to your partner's and see how balanced your communication pace is.
Valentine Gift Budget Calculator
Get a suggested Valentine's Day (or any occasion) gift budget scaled to your discretionary income and relationship length.
The Fun Math of Relationships
From tracking how long you have been together to checking a popular age-gap rule of thumb, relationships come with their own lighthearted math. These ten calculators cover that side of dating and relationships.
For the numbers people actually track over time, the Relationship Length Calculator and Anniversary Calculator handle the real date math behind a relationship's timeline.
Popular Love & Relationship Calculators
- Compatibility Calculator — a lighthearted compatibility score based on names or birth dates, for entertainment purposes.
- Long Distance Relationship Calculator — totals time apart and time zone difference for long-distance couples.
- Age Gap Calculator — calculates the exact age difference between two people.
Related: Astrology & Numerology Calculators for zodiac-based compatibility, Wedding Calculators for planning ahead.