Smartest solar sizing tool. Know exactly how many panels, what inverter size, and how many batteries you need — before spending a single rupee.
Two powerful calculation methods, accurate formulas, and bilingual support — all in one offline app.
No expertise needed. Follow these steps and get a complete solar system recommendation in under 2 minutes.
All formulas are based on standard solar engineering principles tuned for average climate.
Free to download. No account needed. Works 100% offline. All calculations happen on your device.
We believe in full transparency. Read our policies below.
Solar Load Calculator ("we", "our", "the app") is committed to protecting your privacy. This Privacy Policy explains how we handle information when you use our mobile application.
We do not collect, store, transmit, or share any personal information. Specifically, we do not collect:
All data you enter — appliance selections, wattage values, monthly units — is processed and stored locally on your device only. This data never leaves your phone. It is used solely to display calculation results to you.
The app may display advertisements served by Google AdMob. Google AdMob may collect certain device and usage information to serve relevant ads in accordance with Google's Privacy Policy. You can review Google's data practices at policies.google.com. We do not have access to or control over the data AdMob collects.
The app does not require you to create an account or log in. There is no registration process, and we do not maintain any user database.
Our app is not directed at children under the age of 13. We do not knowingly collect any information from children.
We may update this Privacy Policy from time to time. Any changes will be reflected with an updated effective date. Continued use of the app after changes constitutes your acceptance of the new policy.
If you have any questions about this Privacy Policy, please contact us at: support@solarcalc.pk
By downloading, installing, or using Solar Load Calculator, you agree to be bound by these Terms of Use. If you do not agree to these terms, please do not use the application.
We grant you a limited, non-exclusive, non-transferable, revocable license to use the application for personal, non-commercial purposes. This license does not include the right to:
Solar Load Calculator is provided strictly for informational and estimation purposes. The calculations and recommendations provided by the app are approximations based on standard engineering formulas and pakistan-specific averages. They are not a substitute for professional solar engineering assessment.
While we strive for accuracy, actual solar system requirements may vary based on factors including but not limited to: local weather conditions, shading, roof orientation, cable losses, charge controller efficiency, battery age, and appliance actual consumption. Always verify results with a certified solar installer.
You agree to:
All content, design, code, and functionality of Solar Load Calculator is the intellectual property of the developer. Unauthorized reproduction or distribution is prohibited.
We reserve the right to modify, update, or discontinue the application at any time without prior notice.
These Terms shall be governed by and construed in accordance with the laws of Pakistan.
Solar Load Calculator is provided "as is" without any warranties, expressed or implied. The developer makes no representations or warranties of any kind regarding the accuracy, completeness, or suitability of the information provided by this application.
The calculations, results, and recommendations generated by this application do not constitute professional solar engineering advice. The app uses generalized formulas and average values (5 peak sun hours, 80% system efficiency, 25% safety margin) which may not reflect your specific location, equipment, or installation conditions.
Do not make significant financial purchases or investments based solely on the results of this application. Solar system pricing, component availability, and requirements vary significantly. Always:
To the fullest extent permitted by law, the developer shall not be liable for any direct, indirect, incidental, special, or consequential damages arising from the use of, or inability to use, this application or its results. This includes but is not limited to financial loss resulting from solar equipment purchases made based on app recommendations.
This app may display third-party advertisements. We are not responsible for the content of such advertisements or for any products/services advertised therein.
Default wattage values for appliances are typical industry averages. Your specific appliances may consume more or less power. For best accuracy, check your appliance's nameplate or manual for actual wattage and enter it manually in the app.