Engineering Notation Calculator
Convert decimal numbers to engineering notation with SI prefixes
Convert to Engineering Notation
Supports decimal, scientific (1.5e-6), and mathematical notation (3 × 10^9)
Example Calculations
Large Number
Input: 65,000
Engineering: 65.0 k
Scientific: 6.50 × 10^4
Small Number
Input: 0.000073
Engineering: 73.0 μ
Scientific: 7.30 × 10^-5
How Engineering Notation Works
SI Prefix Reference
Quick Conversions
Input Formats
Decimal
1000, 0.001, 123.456
Scientific (e notation)
1.5e-6, 3E+9, 2.5e12
Mathematical
3 × 10^9, 1.5 * 10^-6
Understanding Engineering Notation
What is Engineering Notation?
Engineering notation is a version of scientific notation where the exponent of 10 is always a multiple of three (3, 6, 9, 12, etc.). This aligns with the SI (metric) prefix system, making it easier to express measurements with appropriate units.
Why Use Engineering Notation?
- •Aligns with SI prefixes (kilo, mega, milli, micro, etc.)
- •Easier to read and communicate large or small numbers
- •Common in engineering and scientific calculations
- •Reduces errors in calculations and measurements
Common Applications
Electronics
Resistor values (4.7 kΩ), capacitor values (100 μF), frequencies (2.4 GHz)
Measurements
Distances (5.2 km), masses (250 mg), voltages (12 V), currents (15 mA)
Computing
Storage capacity (1 TB), memory (8 GB), processor speed (3.2 GHz)
Pro Tip: Engineering notation makes it easy to perform mental calculations by working with prefixes instead of counting zeros.