About
A calculator built for solar owners — not the grid.
The Net Meter Calculator turns the confusing numbers on your bidirectional meter into one clear answer: are you in credit, or do you owe? It’s free, needs no sign-up, and keeps every reading private on your own device.
Features
Everything you need to read your net meter
Solar export tracking
Record exported units with an optional deduction for utility losses or fees.
Peak / off-peak analysis
Separate time-of-use imports so your net figure reflects how you’re actually billed.
Instant net surplus
A live ledger adds it all up the moment you type — no “calculate” button needed.
Multi-currency
Price your result in your local currency, with Pakistan’s PKR set as the default.
Saved on your device
Your readings persist in your browser’s local storage — return any time, nothing uploaded.
Mobile-ready
A responsive, touch-friendly layout that works on the phone in your hand at the meter.
How it works
Six steps to your net balance
- 1
Choose currency & region
Set your local currency so the cost figure is meaningful.
- 2
Off-peak import #8
Enter the present meter reading and the units on your last bill.
- 3
Peak import #6
Do the same for peak-hour consumption.
- 4
Off-peak export #5
Add your exported units and any deduction percentage.
- 5
Previous surplus
Include any credit carried forward from last cycle.
- 6
Read your result
See your net surplus, status and estimated amount update live.
The formula
Every figure rolls up into one transparent calculation:
Net surplus = (Export − deduction) − (Off-peak import + Peak import) + Previous surplus
Your data stays yours
Every calculation runs entirely in your browser. Readings are saved only to your device’s local storage and are never sent to a server — there’s nothing to sign up for and nothing to leak.
See your numbers in seconds
Open the calculator and turn your meter readings into a clear net balance.