Unit & measure converter
Say the Measure.
Fathom Does the Math.
Type a phrase like 1 cup flour in grams, or point the camera at a printed recipe, label or sign. Fathom shows every measure in the units you already know, in your own language, with no account to create.
Illustration. The results shown are the ones Fathom's conversion engine gives.
Pancakes
2 cups flour ≈ 240 g
1 tbsp sugar ≈ 14.8 mL
1 1/4 cups milk ≈ 296 mL
Heat the pan to 350°F 176.67 °C
Illustration of the Conversion Lens. Not a screenshot.
The Conversion Lens
Point at it. Read it in your units.
Hold the phone over a recipe, a product label, a thermostat card or a price tag. Fathom reads the text on the device, then lays the converted amount beside each line, so you don't type anything.
- ✓Reads more than recipes. Weights, volumes, lengths, temperatures, speeds, areas and prices. A price such as $12.50 is shown in your currency and marked ≈, because rates move.
- ✓Steady on a shaky hand. A pill appears only once a line has been seen twice, and stays put while the picture jitters, so numbers don't flicker.
- ✓Hold, then read the list. Freeze the picture, or open Detected to see every line with its conversion. Tap one to copy it, or share the whole list.
- ✓Your units, your choice. Show results in My units, US or Metric. The lens never changes your saved settings.
- ✓Torch and tap-to-focus for a dim kitchen or a curled-up label.
- ✓Nothing is saved. Camera pictures are not stored or sent anywhere.
One Field. Almost Every Measure.
The converter is built around a phrase, the way you'd say it out loud, so there is no menu of units to hunt through first.
Type it the way you say it
“10 kg to lb”, “6'2" to cm”, “350f”, “12 x 20 ft to m2”. Abbreviations, symbols and plain words all work. A typo gets a “Did you mean…” you can tap.
Nine kinds of measure
Length, area, mass, volume, temperature, speed, fuel economy, time and cooking units, with ingredient-aware answers such as a cup of flour in grams (marked ≈ when it is an estimate).
30 currencies, honestly dated
Reference rates ship inside the app and every currency answer shows the rate date. If they are more than 14 days old, it says so instead of pretending.
Tip and split, to the coin
Add the tax, tip on the amount before tax or the whole bill, and split equally or by what each person ordered. The shares add up to exactly the total.
Six languages, in the phrases too
English, Spanish, French, German, Portuguese and Chinese. In Spanish you type “10 kg a libras” and read the answer with a decimal comma.
Copy, share, carry on
Copy just the value or the whole sentence, or share it. Recent conversions are one tap away, and one tap clears them.
The Tip tab
Split the bill without the arguing.
Enter the bill and the tax, pick 10, 15, 18, 20 or your own percent, then split it equally or give each person a box for what they ordered. Anything nobody claimed, like a starter for the table, is shared equally and says so. Tax and tip follow each person's own food, and rounding is applied to each share.
From Question to Answer in Seconds
No sign-up, no setup tour. Open it and ask.
Ask
Type a phrase, tap an example, or open the Conversion Lens and point the camera.
Fathom reads
The phrase is understood, and the camera's text is read, on your device.
See it in your units
The answer is large and first, with the sentence under it and other units one tap away.
Copy or share
Take the value, the sentence or the whole list with you. Nothing else is saved.
What Fathom Actually Does
No hand-waving about what's “smart.” Here is how it behaves.
- ✓No account. There is nothing to sign up for or sign in to. Conversions, the bundled exchange rates and the camera's text reading all happen on your device.
- ✓Camera pictures are never saved or sent. The camera is used only to read text, and the Detected list is not stored.
- ✓Honest about estimates. A cup of flour in grams, or a price in another currency, is marked ≈. Currency answers show the rate date and warn when it is old.
- ✓Help only when you ask. If you send a message to support from the app, it is sent only when you press Send. The address you type is used just to reply.
- ✓Made to be read. Light, dark or system theme; layouts checked at up to 200% text size; 48 dp touch targets; the answer is announced to screen readers as it changes. On wide screens the tabs move to the side, and on a tablet turned sideways the field and the answer sit next to each other.
- ✓Built to open quickly. The start-up screen is designed to be gone in about a second, and it never waits for anything it doesn't need.
Languages