Jenee

Unit Converter

Result
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How to Use

  1. STEP 1
    Select a category (e.g., Volume) and choose source/target units.
  2. STEP 2
    Enter a number. Conversion happens instantly when you change inputs.
  3. STEP 3
    Use Swap to reverse units or Reset to clear inputs.
  • All calculations run locally in your browser. No data is sent to servers.
  • Precision is sufficient for daily use. For scientific/engineering accuracy, verify constants and significant digits.
  • Japanese cooking measures: teaspoon=5 mL, tablespoon=15 mL, measuring cup=200 mL. US values differ.

Tips

1

Length: 1 inch = 2.54 cm exactly; 1 foot = 30.48 cm.

2

Area: 1 tsubo ≈ 3.3058 m² (traditional Japanese unit).

3

Weight: 1 lb ≈ 0.45359237 kg; 1 oz ≈ 28.349523 g.

4

Temperature: °C↔°F conversions use linear formulas; Kelvin is absolute temperature.

5

Cooking measures vary by region. Japan often uses 200 mL measuring cup, 15 mL tablespoon, 5 mL teaspoon. US tablespoon is about 14.7868 mL.

6

Rounding: Results are formatted up to 6 decimal places. For critical work, control significant figures explicitly.

7

Clothing sizes differ by brand and fit. Treat conversions as approximate guidance.

8

Swap quickly reverses units. Use it to check back-and-forth consistency.

FAQ

  • Q1

    Does it work offline?

    The initial page load requires an internet connection. After the page loads, all conversions run locally on your device without further network access. If installed as a PWA, some environments allow launching the tool offline.

  • Q2

    Why are cooking cup sizes different?

    Japan commonly uses a 200 mL measuring cup, while US cup is about 236.588 mL. We include both.

  • Q3

    How are clothing sizes converted?

    We map via an approximate chest-size table (S/M/L/XL) and return the closest equivalent in the target region.

  • Q4

    Can I add custom units?

    Not at the moment. If you have a request, please let us know — we prioritize widely useful additions.

  • Q5

    How is rounding handled?

    Results are displayed with up to 6 decimal places using locale-aware formatting. Internal calculations use precise constants.

  • Q6

    Why do results differ slightly from other sites?

    Differences in constants, definitions (e.g., regional cooking measures), or rounding rules can cause small discrepancies.

Feedback (Contact)