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Conversion Calculators

Welcome to SchoolMyKids’ comprehensive collection of free online Conversion Calculators. Our easy-to-use Conversion Calculators offer an easy and reliable way to convert between a wide range of units. Best online conversion calculators covering Timezone Converter, Currency Converter, Epoch Converter, Case Converters and all Metric Conversion charts and calculators. These tools provide accurate results in seconds, helping you save time and ensure precision.Whether you're converting time, currency, energy, temperature, or other units, our tools provide quick and accurate results with just a click. Perfect for engineers, students, professionals, and anyone working with measurements and units.

Overview of different system of Units

Here's an overview of different systems of units such as SI (International System of Units), Astronomical, Biblical, and Metric.

1. SI (International System of Units)

The SI system is the modern form of the metric system, and it is the most widely used system of measurement worldwide. It is based on seven base units and their multiples or sub-multiples.

Common SI Units:

  • Meter (m)
  • Kilogram (kg)
  • Second (s)
  • Ampere (A)
  • Kelvin (K)
  • Mole (mol)
  • Candela (cd)

SI Derived Units:

  • Newton (N) for force
  • Joule (J) for energy
  • Pascal (Pa) for pressure
  • Watt (W) for power

2. Astronomical Units

Astronomical units are used in astronomy to measure vast distances and sizes. They are commonly used in the study of space.

Common Astronomical Units:

  • Astronomical Unit (AU) - (1 AU ≈ 149.6 million kilometers)
  • Light-Year (ly) - (The distance light travels in one year)
  • Parsec (pc) - (3.26 light-years)

3. Biblical Units

Biblical units of measurement are mentioned in ancient scriptures like the Bible, which were used during the times described in these texts. These units are not used today.

4. Metric System

The Metric System is a decimal-based system of measurement, and it is the predecessor of the SI system. It uses base units such as meter, kilogram, and liter, with prefixes to denote multiples and sub-multiples. These units are used globally for daily and scientific measurements, especially in non-English-speaking countries.

Common Metric Units:

  • Meter (m)
  • Kilogram (kg)
  • Liter (L)
  • Gram (g)
  • Celsius (°C)
  • Second (s)

Metric Prefixes:

  • Kilo- (k) - (1,000)
  • Centi- (c) - (1/100)
  • Milli- (m) - (1/1,000)
  • Mega- (M) - (1,000,000)
  • Micro- (µ) - (1/1,000,000)