Opal Calculator

Founder @ Opal Calculator

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About

Creating free online calculation tools and SaaS utilities for daily use at Opal Calculator.

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Maker History

Opal CalculatorFree Online Calculators for Everyday Life & Projects
Oct 2026

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Joined Product HuntOctober 23rd, 2026

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p/opal-calculator

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17h ago

Hey Product Hunt Community! Meet Opal Calculator – Your All-in-One Everyday Math & Utility Hub

Hey everyone!

I'm super excited to share Opal Calculator with this amazing community!

As developers and everyday internet users, we often find ourselves opening 10 different tabs just to calculate percentage drops, cubic yards, tax estimates, or simple daily metrics. I got tired of messy, ad-heavy tool sites, so I built Opal Calculator to solve this.

It's a fast, clean, and distraction-free hub packed with accurate online calculators for math, home, business, food, and more all built on a modern, lightning-fast tech stack.

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14h ago

Opal Calculator - Free Online Calculators for Everyday Life & Projects

Opal Calculator brings together a growing collection of free, easy-to-use online calculators for everyday needs. From percentages and math to home improvement, business costs, food and more, get quick and accurate results with clear formulas and step-by-step explanations. No complicated setup. Just choose a calculator, enter your values, and get your answer in seconds. Try Opal Calculator and make everyday calculations easier!