What the Unit Converter covers
- Length: meter, kilometer, centimeter, millimeter, micrometer, nanometer, inch, foot, yard, mile.
- Mass: kilogram, gram, milligram, microgram, pound, ounce.
- Time: second, millisecond, microsecond, minute, hour, day.
- Temperature: Celsius, Kelvin, Fahrenheit with exact formulas.
- Pressure: pascal, kilopascal, bar, atmosphere, torr, psi.
- Energy: joule, kilojoule, calorie, kilocalorie, electronvolt.
- Power: watt, kilowatt, horsepower.
- Speed: m/s, km/h, mph, knot.
- Area and volume: m², cm², km², ft², in², m³, L, mL, ft³, in³.
- Force: newton, pound-force.
- Frequency: hertz, kilohertz, megahertz, rpm.
- Molarity: mol/L, mmol/L with quick scale adjustments.
Accuracy and formatting controls
- Significant figures: set the exact number of sig figs to match lab or journal instructions.
- Scientific notation: toggle neat 1.23 × 10^-3 output for tiny or huge values.
- Decimal places: lock fixed decimals for table-friendly alignment.
- Unit search: type to filter and switch faster between similar units.
- One-click copy: copy value only or value + unit label for clean pasting.
Quick start
- Open the Unit Converter.
- Pick a category such as Temperature or Pressure.
- Enter a number and select the From and To units.
- Set significant figures or decimals, and enable scientific notation if needed.
- Copy the result into your sheet, lab report, or LMS.
Common physics and chemistry examples
- Speed: mph to m/s for kinematics problems.
- Pressure: psi to kPa when reading sensor data or datasheets.
- Temperature: Celsius to Kelvin for reaction rates and ideal gas law.
- Volume: liters to m³ for flow and tank sizing.
- Energy: joules to calories for calorimetry summaries.
- Force: newtons to pound-force for materials testing notes.
- Molarity: mol/L to mmol/L for stock solution prep.
- Frequency: Hz to rpm for rotating systems and motors.
Clean up and document your numbers
Keep data tidy before converting and when reporting results: remove extra spaces with the Whitespace and Formatting Cleaner, strip blank lines with Remove Empty Lines, and get counts with the Word and Character Counter. For column formatting and CSV prep, use the Text to List - List to Text Converter.
Writing up methods or equations? Render LaTeX as crisp images using the Math Formula Renderer, generate polished citations with the BibTeX to Citation Converter, and standardize headings with the Case Converter.
Why an academic-style converter
Students, researchers, and engineers need clear labels and consistent rounding. An academic-style unit converter saves time and reduces mistakes when preparing lab books, problem sets, and technical blog posts by keeping sig figs, decimals, and notation under your control.
Frequently asked questions
- Is the Unit Converter free?
- Yes. It is free for normal use and there is no sign in.
- Do you upload or store my inputs?
- No. Conversions happen in your browser. Your values stay on your device.
- Can I switch between significant figures and decimals?
- Yes. Choose the mode that matches your course or journal instructions and the output will follow it.
- Does it support Kelvin, atm, and eV?
- Yes. Temperature includes Kelvin, pressure includes atm and other common units, and energy includes eV.
- What about formatting for long tables?
- Use fixed decimals for tables. Copy value only or value with unit to keep columns clean.