R1+R2 Zs Ze Calculator

R1+R2 Zs Ze converter for Android. Calculate the earth fault loop impedance (Zs) from R1+R2 and Ze. also calculate the R1+R2 value from Zs and Ze.

A handy app for checking and verifying measured Zs or R1+R2 values, or for calculating a value from the other two known values.

While calculating Zs or R1+R2 is a simple calculation, using the app can help save a lot of time if you have a lot to calculations to do.

FEATURES:
Enter any two values to calculate the third.
- Calculate Zs
- Calculate R1+R2
- Calculate Ze

While this app can calculate Ze, it is not recommended. Ze should be obtained by measurement or by enquiry, see BS 7671 for further details.

Supports dark mode and 16 languages (en, af, ar, de, es, fr, hi, id, it, ja, ko, nl, pl, pt, ru, zh).

Simple, fast, and accurate — the r1r2 calculator you'll reach for every day.

Trusted by electricians since 2011.