Love Calculator Help Documentation

A complete guide to the Love Calculator, from the name game to your days together.

Last Updated: November 12, 2026

1. Getting Started

The Love Calculator has four tabs under the heading: Calculator (the name game), Check-in (twelve statements about your relationship), Sparks (questions, date ideas, gestures and a game) and Us (your days together and what you saved). Everything happens on this page; nothing is uploaded and there is no account.

2. The Name Score

Type your name and your partner's name (up to 30 characters each), choose Dating, Engaged, Married or It's a crush, and press Calculate our love. The heart beats faster, fills to the score and bursts into small hearts; a heading, a short reading, a couple name and four meters appear beside it. With reduced motion turned on in your device's settings, the heart shows the score at once without moving.

Copy result copies one line with the names and the score to paste into a chat. Try other names brings back the form with the names you typed.

3. How the Score Is Made

Both names are written in small letters, invisible characters (such as a zero-width space pasted from another app) and extra spaces are left out, and a letter with an accent is written the same way however it was typed. The two names are put in alphabetical order, joined, and mixed into one large number by a fixed formula. The score is 58 plus that number's remainder after dividing by 43, so it runs from 58 to 100. The same two names always give the same score, in either order. If both boxes hold the same name, the heart fills to 100 with a note that self-love comes first.

4. The Couple Name and the Meters

The couple name joins the first half of the first name with the second half of the second (the first word of each), moving the cut by one letter when that makes the join easier to say. It is made only when both first names are written in Latin letters and at least two letters long, and only when the result differs from both names. The four meters (Spark, Friendship, Laughter and Adventure) come from the names in the same way as the score and run from 55 to 100. The line under "We are" changes only the last sentence of the reading.

5. The Check-in

Open the Check-in tab. The names from the Calculator are filled in; change them if you like. Choose Answer on my own or Answer together. Each of the twelve statements, such as "I trust my partner to keep their word", is answered with Never, Rarely, Sometimes, Often or Always; the next statement follows at once, and Back returns to the one before. The bar at the top shows how far you are.

The statements cover six parts of a relationship, two each: talking, trust, affection, time together, teamwork, and fun and appreciation. It is not a test or a diagnosis; it reflects your own answers.

6. Answering Together

With Answer together, the first person answers all twelve statements, then the page asks to pass the device to the second person, whose answers start fresh. Neither sees the other's answers until both have finished. The result then shows two bars for each part, one per person, and lists the statements where your answers are two steps or more apart, such as Always and Sometimes. Those are often the best ones to talk about calmly; neither answer is wrong.

7. Your Check-in Result

• The overall score from 0 to 100, with one of four headings: You two are thriving (85 and over), Strong, with room to grow (70 to 84), Good bones, needs some care (50 to 69) or Going through a rough patch (below 50).
• Each part's score: every answer counts 0, 25, 50, 75 or 100, and a part is the average of its two statements.
• Your strongest part, with a line about it.
• Ideas for the one or two parts below 75: three simple ideas each and one thing to try tonight, or three ways to keep it up when every part is 75 or more.
• A note about help: below 50 overall, a couples counsellor is suggested; below 50 overall or below 40 for trust, the page also says plainly to talk to someone you trust, a local helpline or, in an emergency, your local emergency number if you ever feel afraid or unsafe.

The overall score, the date and alone or together are kept for the last twelve check-ins and shown on the Us tab, with the change since the last one. The answers are not kept.

8. Sparks

Choose a deck: Questions (30 questions to ask each other), Date ideas (24, marked At home or Going out), Little gestures (24 small things to do today) or Who's more likely. The first card of each deck is today's pick, the same for everyone on the same day; Show another deals the rest in a shuffled order. Save keeps a card on the Us tab (press it again to remove it). The Calculator tab also shows today's question.

9. Who Is More Likely

Ten rounds, each a statement such as "Who's more likely to fall asleep during a film?". Decide together and press one of the two names. The names come from the Calculator or the check-in; without them the buttons say Partner 1 and Partner 2. After ten rounds the final score is shown; Play again deals ten new statements from twenty.

10. Us: Your Days Together

Pick the day you got together. The Us tab then shows the number of days since then, the same time in years, months and days, and what is coming up: the next anniversary (or Happy anniversary on the day), the next round hundred days and the next round thousand days, each with its date and how many days away it is. Days are counted on the calendar, so a summer time change makes no difference. An anniversary of 29 February falls on 28 February in other years. The day must be from 1900 up to today.

11. Saved Data and Clearing It

The tool keeps its data in this browser under one name of its own: the two names and "We are", the last six results (each pair once, the newest first), the last twelve check-in scores, up to 40 saved sparks and the day you got together. Nothing is kept until you calculate, finish a check-in, save a spark or pick a date. Clear everything saved on this device, at the bottom of the Us tab, asks first and then removes only this tool's data. A private window, or clearing the site's data in the browser, also starts afresh. When the browser does not allow the page to keep data, the tool still works and says that nothing will be kept.

12. Limits

• Names: up to 30 characters each.
• Recent results: the last 6 pairs; check-ins: the last 12; saved sparks: 40.
• The day you got together: from 1 January 1900 up to today.
• Saved data is checked value by value each time the page opens; anything that is not what the tool itself writes is left out.

13. Keyboard and Accessibility

Every button and box can be reached with Tab. The four tabs follow the usual pattern: the arrow keys move between them, and Home and End jump to the first and last. Enter in a name box calculates. After each answer in the check-in, the next statement takes the focus, so a screen reader reads it; the score is announced when it is ready. The answer buttons say which one is chosen. The heart moves only while it fills and twice when the page opens, and not at all with reduced motion turned on.

14. Privacy and Your Data

The names, answers, saved sparks and dates stay in this browser on this device; there is no upload and no account, and the tool asks no outside service for anything. Copy result puts a line on your clipboard; nothing is posted by the tool. Like every page on ZeroDataUpload, the page shows ads through Google AdSense and counts visits with Google Analytics; the Privacy Policy explains both.

15. How It Was Checked

Before publishing, the tool's calculations were compared with a separate program written from the rules on this page: 552,059 cases in 13 groups, among them hundreds of thousands of name pairs in many scripts (the same score in either order, in any capitals, with accents typed two ways and with invisible characters), the couple names, the readings and meters, every way of answering the check-in alone and together, years, months and days between dates compared with a well-known date library, anniversaries and round days, saved data made to break the tool, and texts cut without splitting a letter or an emoji. The page itself was then tested in a browser on phones and computers in both themes, with long and hostile names, blocked storage and the keyboard. The original version counted a name typed with an accent mark differently from the same name typed as one character, wrote minus days between some dates, read the year 0050 as 1950 and took saved data without checking it; that is fixed.

16. Troubleshooting and Support

• The score changed. One letter or a nickname makes a different pair of names. Capitals, spaces and accents do not.
• No couple name appears. It is made only from first names in Latin letters, and not when it would equal one of the names.
• Copy result does nothing. The browser blocked the clipboard; the result appears in a box below, selected, to copy by hand.
• The day I picked is not accepted. It must be from 1900 up to today.
• My saved sparks and check-ins are gone. They are kept per browser and device; a private window or cleared site data starts afresh.

For questions the FAQ does not answer, use the contact form.