Unit converters

All unit converters

• Currency converter – manual rates, base currency and quick totals | CalcBE
  Convert currencies with manual rates or a base‑currency cross. Enter a direct quote or two‑step rate, swap currencies, and copy a shareable result.
• Length Converter (m, km, cm, mm, inch, foot, yard, mile) | CalcBE
  Convert lengths across metric and imperial units at once with SI‑based factors, keyboard input, and a shareable result link.
• Temperature Converter (Celsius, Fahrenheit, Kelvin) | CalcBE
  Convert between Celsius (°C), Fahrenheit (°F), and Kelvin (K) with precise formulas, keyboard input, and a shareable result link.
• Universal Unit Converter for Length, Area, Volume & More | CalcBE
  Convert length, area, volume, mass, speed and temperature units instantly. Pick a category, enter a value and read the full conversion table, then copy results or share a URL.

Quick unit conversion reference

Common formulas and sample values for everyday conversions. For more units and precise results, use the converters below.

Currency rates change over time — calculate with the rate you need at the moment (see Currency converter).

Temperature (°C ↔ °F)

• Celsius → Fahrenheit: °F = °C × 9/5 + 32
• Fahrenheit → Celsius: °C = (°F − 32) × 5/9

Temperature is an “offset” unit (not just a multiplier), so use the proper formula or a converter (see Temperature Converter).

Length (cm / inch, m / ft)

• 1 inch = 2.54 cm (exact)
• 1 ft = 0.3048 m (exact)

Choose rounding/precision based on your use case. If you need a full conversion table, use Universal Unit Converter and Length Converter.