Unit Converter: every unit at once
Convert length, weight, temperature, volume, area, speed, time, data, pressure, energy and angle. Enter one value, see it in every unit of that category instantly. No from/to dropdowns. No sign-up.
- 11 categories · 79 units
- Every unit shown at once
- Click any result to copy
- Works offline
Value
Result
8 units
1 m =
Converted on your device. Nothing is uploaded or saved. How we keep it private
- 11 Categories
- Live Result
- No Sign-up
- No Ads Blocking
- One-Click Copy
- Works Offline
Everything this tool can convert
Eleven categories, 79 units. If it can be measured, it is probably here.
| Category | Units | Includes |
|---|---|---|
| Length | 9 units | mm, cm, m, km, inch, foot, yard, mile, nautical mile |
| Weight | 7 units | mg, g, kg, metric ton, ounce, pound, stone |
| Temperature | 3 units | Celsius, Fahrenheit, Kelvin |
| Volume | 11 units | mL, L, m³, tsp, tbsp, fl oz, cup, pint, quart, gallon US/UK |
| Area | 10 units | mm², cm², m², hectare, km², in², ft², yd², acre, mi² |
| Speed | 5 units | m/s, km/h, mph, knot, ft/s |
| Time | 8 units | ms, s, min, hour, day, week, month, year |
| Data | 9 units | bit, byte, KB, MB, GB, TB, KiB, MiB, GiB |
| Pressure | 6 units | Pa, kPa, bar, PSI, atmosphere, mmHg |
| Energy | 7 units | J, kJ, cal, kcal, Wh, kWh, BTU |
| Angle | 4 units | degree, radian, gradian, turn |
Common conversions at a glance
The most looked-up conversions. The tool above computes any of these instantly. This is a bookmarkable reference.
| Value | Equal to |
|---|---|
| 1 inch | 2.54 cm · 25.4 mm · 0.0833 ft |
| 1 foot | 30.48 cm · 12 in · 0.3048 m |
| 1 mile | 1.609 km · 5280 ft · 1760 yd |
| 1 kg | 2.205 lb · 35.274 oz · 1000 g |
| 1 lb | 453.592 g · 16 oz · 0.4536 kg |
| 0°C | 32°F · 273.15 K |
| 100°C | 212°F · 373.15 K |
| 1 L | 1000 mL · 33.814 fl oz · 0.2642 gal |
| 1 gal (US) | 3.785 L · 128 fl oz · 4 qt |
| 1 acre | 4046.86 m² · 0.4047 ha · 43560 ft² |
| 60 mph | 96.56 km/h · 26.82 m/s · 52.14 kn |
| 1 GB | 1000 MB · 953.67 MiB · 1e9 bytes |
| 1 GiB | 1024 MiB · 1073.74 MB · 2³⁰ bytes |
| 1 bar | 14.504 psi · 100 kPa · 0.9869 atm |
| 1 kWh | 3.6 MJ · 860 kcal · 3412 BTU |
| 180° | π rad · 3.1416 rad · 200 grad |
Why this is the best unit converter
Everything runs on your device. Faster, cleaner and free from the usual converter-site trade-offs.
| Feature | TToolDeck | UnitConverters.net | Google / Wolfram |
|---|---|---|---|
| No sign-up or email | Yes | Yes | Partial |
| No ads blocking the input | Yes | No | No |
| All units at once (no from/to) | Yes | Partial | No |
| Live as you type | Yes | Yes | Yes |
| Click a result to chain conversions | Yes | No | No |
| Recent inputs kept | Yes | No | No |
| 11 categories in one page | Yes | Yes | Partial |
| Works offline after first load | Yes | No | No |
| No popups, no signup wall | Yes | No | No |
| One-click copy per value | Yes | Partial | Yes |
Comparison reflects publicly available information at the time of writing. Features may change. Representative examples of common patterns.
More free calculators
Free browser-based calculators. Nothing uploaded, ever.
Unit Converter
You are here11 categories, converts to every unit at once
Percentage Calculator
Five modes with step-by-step breakdown
Age & Date Calculator
Find exact age or days between dates
BMI Calculator
Check your body mass index
Loan EMI Calculator
Monthly payment and total interest
Currency Converter
Convert between world currencies
How it works
- 1
Pick a category
Length, weight, temperature, volume, area, speed, time, data, pressure, energy or angle.
- 2
Enter a value and unit
Type any number and choose the from-unit. Use quick buttons for common values like 1, 10, 100.
- 3
Copy any result
Every other unit in the category shows the converted value instantly. Click any row to copy it.
Everything you get for free
Every unit at once: no from/to dropdowns
Most converters make you pick a "from" and a "to" unit. This one shows conversions to every unit in the category simultaneously. Enter 100 kg and instantly see it in grams, ounces, pounds, stone and metric tons.
11 categories in one page
Length, weight, temperature, volume, area, speed, time, digital storage, pressure, energy, angle. One tool covers everything, from inches to acres, PSI to bars, joules to BTUs.
Click any result to copy
One tap on any converted value copies it to your clipboard with the unit symbol. Paste it straight into a document, spreadsheet or message.
Live as you type: no Calculate button
Every digit updates every result instantly. Type a price, weight, distance or temperature and see the full set of converted values before you finish the number.
Both decimal and binary data units
Most converters mix up KB and KiB, MB and MiB. This tool shows both: decimal (1000-based, what drive makers use) and binary (1024-based, what operating systems use).
Runs entirely on your device
Every conversion happens in your browser using pure JavaScript. No server, no API calls, no tracking. Your values never leave your device.
Recent inputs kept
The last few values you typed stay as one-click chips. Useful when you are checking the same measurement repeatedly against different units.
No sign-up, no ads blocking the input
Open the page and use it. No account, no email, no popups covering the calculator.
What people use it for
Cooking and baking
A recipe in cups and you only have grams. Or tablespoons and you only have milliliters. Convert instantly without guessing.
Travel and distance
Road sign says 120 km/h and you think in mph? Convert on the fly. Hotel says 8 miles from the airport: see it in kilometers instantly.
Weight and fitness
Track body weight in both kg and lbs. Convert recipe ingredients, shipping weights, or dumbbell plates at the gym.
Engineering and DIY
PSI to bar for tires. Newtons to pounds for torque specs. Joules to calories for heating. Acres to square meters for land.
Energy and fuel
Kilowatt-hours to joules. BTU to watts. kWh to calories. All energy conversions for appliances, heaters and generators.
File sizes and storage planning
Convert GB to MB, MiB to GB, TB to GiB, with both decimal and binary units clearly distinguished.
Questions people ask
How many categories does this unit converter cover?
Eleven: length, weight, temperature, volume, area, speed, time, digital storage (data), pressure, energy, and angle. Together they cover 79 individual units.
Why does it show all units at once instead of "from" and "to" dropdowns?
Because you almost never need just one conversion. You want to compare options. A recipe says 250 mL but you only have cups and tablespoons. A road sign says 120 km/h and you want both mph and m/s. Showing every unit at once eliminates the back-and-forth and saves two clicks per query.
What is the difference between KB and KiB, MB and MiB?
KB (kilobyte) = 1000 bytes. KiB (kibibyte) = 1024 bytes. Same for MB/MiB, GB/GiB, TB/TiB. Drive makers use decimal (1000-based). Operating systems have traditionally used binary (1024-based) but called them "MB" and "GB", which is why a "500 GB" drive shows as 465 GiB in Windows. Both units are listed separately in this tool.
How do I convert Celsius to Fahrenheit?
The formula is F = C × 9/5 + 32. The tool does it live. Enter the temperature, select Celsius, and every other temperature unit (including Fahrenheit and Kelvin) shows instantly. Common anchor points: 0°C = 32°F, 100°C = 212°F, 37°C = 98.6°F (body temperature), -40°C = -40°F (the point where the two scales meet).
Is the conversion accurate enough for science and engineering?
Yes. Every conversion factor is stored with full double-precision accuracy (up to 15 significant digits) and matches the official SI definitions. Results are shown to 8 decimals for small values.
Can I convert between two units in different categories?
No. Cross-category conversions do not make sense for most pairs (you cannot convert kg to km). This tool keeps each category self-contained, which is why the results are unambiguous.
How do I copy a result?
Click any converted value in the results list. It is copied to your clipboard with the unit symbol included, for example "1.609 km". Paste it directly into a document, chat or spreadsheet.
Does this unit converter need internet?
The first load downloads the page. After that everything runs in your browser. You can switch off Wi-Fi and keep converting. No API calls, no server roundtrips, no rate limits.
Is it safe for medical dosages?
The conversion math is exact and matches standard references. But any tool, ours or anyone else's, should never be the only check for a medical dose. Always confirm with a pharmacist, the drug label, or a clinical reference before administering.
Does it work on iPhone and Android?
Yes. The layout is mobile-first, the input is a large numeric-friendly field, and the results list is a single scroll. Works in Safari on iOS and Chrome on Android.
Why are there both US and UK gallons?
Because they are different. 1 US gallon = 3.785 L. 1 UK (imperial) gallon = 4.546 L, about 20% larger. The tool lists both so you can avoid the mistake that has caused real-world errors in fuel, shipping and trade.
Is my data sent anywhere?
No. Conversions are computed in your browser. Your values, inputs and history stay on your device. Nothing is logged, tracked or transmitted.
Your values stay on your device
Every conversion happens in your browser. Inputs, results and the recent-history chips never leave your device. There is no server roundtrip, no analytics event capturing the values, and no account. See why ToolDeck is different.