Your numbers know something you don't.
Retirement projections, mortgage and loan repayments, property comparisons across countries, grades, and every unit conversion. Each one shows its working, not just an answer. For instance:
Retirement & superannuation
$894,313 → $368,445
what the balance says, and what it actually buys after 30 years of inflation
Mortgage & loan repayments
$194,606 saved · 5.3 years earlier
on a $500,000 loan, from $50,000 sitting in an offset account
Compare property, country by country
$9.56 vs $30.04 per m²
Ho Chi Minh City against Sydney, same currency, same unit, ranked
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Unit converter
Type a conversion the way you would actually say it, and get the answer, every equivalent unit, and a real sense of how big that is. Type it, say it, or pick it from a list. Nothing is sent anywhere.
Listening… say something like "26 miles to km"
Prefer to pick from a list?
More things your numbers haven't told you
Each of these started as someone's real question - and the answer turned out to be worth knowing.
Money
How much will I actually have when I retire?
$894,313 → $368,445
the account balance, and what it is really worth in today's dollars after inflation - most calculators only show you the first number
School
Can I still pass if I bomb the final?
94.7% needed
exactly what the final exam has to be to hit a target grade - or the honest answer when it is not reachable
Home
Which of these two listings is actually cheaper?
$27.86 vs $30.39
per sq m, two listings in different units, one honest winner
Travel
Why is my bank's rate never the one I see quoted?
$100 = €86.66
the mid-market rate, dated - the one nobody actually gives you, and the baseline for seeing what your bank's margin really costs
Kitchen
How long does this go in the air fryer?
375°F, 24 min
from a 400°F, 30 min oven recipe - not a rough guess
Daily Life
What does this drive actually cost each of us?
$11.06 / person
380-mile trip, real fuel cost, split four ways
Recent (this tab only)
clear
How it actually works
Six small decisions that add up to something that feels obvious once you've used it.
Input
Type it like you'd say it out loud. Fractions, casual phrasing, and “how many” questions all work.
Output
Every unit shown at once. Tap any row to make it the new target.
Meaning
Every result anchored to something real, like a marathon, a DVD, or a Big Mac.
Ambiguity
Regional differences flagged automatically, with every reading shown side by side.
Precision
Exact defined ratios, adjustable from 2 significant figures to 12.
Factors, not approximations. Conversions use exact legal definitions where they exist (the inch is 25.4 mm by definition, the pound is 0.453 592 37 kg, the US gallon is 3.785 411 784 L), applied at double precision and rounded only for display. Temperature and fuel economy use their proper non-linear formulas.
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© 2026 UnitMojo. Every figure here is checked against a primary source and covered by automated tests, but this site is maintained by a small team and mistakes are still possible. If a number looks wrong, tell us and it gets fixed - that is genuinely useful, not a complaint.