Does this offline percentage calculator work on my phone?

Absolutely! The entire OmniCalc.site suite is designed to be mobile-first. Once the page is loaded, the offline percentage calculator works perfectly without an internet connection on any modern browser, including on your phone or tablet.

Free Percentage Calculator – Find % of Any Number Instantly

Q: Can I calculate percent increase or decrease too?

Yes. This tool is a percent increase calculator and a percent decrease calculator all-in-one. Choose the correct tab at the top ('Increase' or 'Decrease'), enter your original and percentage values, and you will get the new value immediately.

Calculate percentage increase, decrease, and part of a total — fast, simple, and offline-ready.

OmniCalc.site's free percentage calculator helps you quickly and accurately find the percentage of a number, calculate percent increase or decrease, and solve everyday math problems involving discounts, price changes, or proportions. Designed to be a fast, ad-free, mobile-optimized, and offline percentage calculator, this tool is your go-to for smart percentage calculations.

Find this percentage:

Of this number:

Starting Value:

Increase by (%):

Starting Value:

Decrease by (%):

Result:

Why Use This Free Percentage Calculator?

Calculate percent of any number quickly for discounts, tips, or taxes.
Easily find percentage increase and decrease for stats, growth, or price changes.
Perfect for students, shoppers, business professionals, and financial planning.
This is a free online percent calculator with no login and no disruptive ads.
It's an offline percentage calculator that works on your mobile and desktop anytime.

Frequently Asked Questions

How do I calculate percent of a number?

Simply enter the total number in the first field and the percentage you want to find in the second. The calculator instantly shows the result.

Can I calculate percent increase or decrease too?

Yes. Choose the correct tab, enter values, and you’ll get the result immediately.

Does this tool work offline?

Yes! Once loaded, it works without internet on any modern browser.