Atto to Hecto Converter

Atto (symbol: 'a') is an SI prefix that expresses the factor 10⁻¹⁸, i.e. one billionth of a billionth.

It was adopted in 1964 by the 12th General Conference on Weights and Measures (CGPM). Atto derives from the Danish word 'atten', meaning 'eighteen', which expresses the 10 to the power of minus eighteen.

Hecto- is a decimal unit prefix in the metric system denoting multiplication by 10² or 100. Added as a unit prefix in the international unit system in 1795, symbolized by 'h'.

Formula 1:-

h = a / 1.0E+20

Formula 2:-

h = a * 1.0E-20

Here's how to convert 5 Atto to Hecto using the formula 1 and formula 2.
Example:: 5 a = ? h

Using Formula 1:-

5 a = (5 ÷ 1.0E+20) h = 5.0E-20 h

Using Formula 2:-

5 a = (5 × 1.0E-20) h = 5.0E-20 h