Unit Converter — Physics
Convert between physics units for length, mass, force, energy, pressure, temperature, speed, and time. Covers SI, CGS, and imperial systems. Essential for CBSE, JEE, and NEET numerical problems.
Unit Converter
1 m =
100 cm
Metre → Centimetre
All Length Conversions from 1 m
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Try Super Tutor — It's FreeHow Unit Conversion Works
Step 1: Select the category (length, mass, energy, etc.).
Step 2: Choose the "from" and "to" units.
Step 3: Enter the value. The result updates instantly.
Method: All conversions go through a base SI unit. For example, cm → m → km. This ensures accuracy across all unit combinations.
Frequently Asked Questions
What is the SI system of units?
The International System of Units (SI) is the modern form of the metric system. It has 7 base units: metre (length), kilogram (mass), second (time), ampere (current), kelvin (temperature), mole (amount), and candela (luminosity). All physics calculations in CBSE, JEE, and NEET use SI units.
How do you convert CGS to SI units?
Common CGS to SI conversions: 1 cm = 0.01 m, 1 g = 0.001 kg, 1 dyne = 10⁻⁵ N, 1 erg = 10⁻⁷ J. In general, identify the CGS unit, find its SI equivalent, and multiply. This converter handles all these conversions automatically.
Why is unit conversion important in Physics?
Incorrect units lead to wrong answers in numerical problems. Examiners deduct marks for missing or incorrect units. In JEE and NEET, many problems require converting between unit systems before applying formulas. Dimensional analysis using units also helps verify if a formula is correct.
How do you convert temperature between Celsius, Fahrenheit, and Kelvin?
°C to K: add 273.15. K to °C: subtract 273.15. °C to °F: multiply by 9/5 and add 32. °F to °C: subtract 32 and multiply by 5/9. Kelvin is the SI unit used in gas law and thermodynamics problems.