QuickCalc - Modern Calculator

A sleek, fast, and modern calculator extension with full keyboard support and precision math.

QuickCalc - The calculator that should have been built into Chrome. Tired of opening your phone or searching Google just to calculate 200 + 10%? QuickCalc is a sleek, lightning-fast calculator that lives in your toolbar. Click it and calculate instantly - no new tab, no bloat. Why users love QuickCalc: ✓ Truly Fast & Keyboard-First Fully operable from your keyboard. Type numbers, + - * /, hit Enter for =, Esc for clear, Backspace to delete. A "Keyboard Active" indicator shows it's always ready. ✓ Precision Math, Not Broken Math Fixes JavaScript's classic bug: 0.1 + 0.2 = 0.3 (not 0.30000000004). Handles large numbers with smart scientific notation and prevents visual overflow. ✓ Smart Features Like a Real Calculator Live Expression: See your full calculation as you type: 125 + 35 not just 35. Smart Percent: 200 + 10% instantly gives 220 - no extra steps. Repeat Equals: Press = again to repeat the last operation (5 + 3 = 8, = => 11). One-Click Copy: Click the display or the copy icon to copy the result instantly. ✓ Beautiful & Private Modern dark UI, adaptive font sizing, operator highlighting, and smooth animations. Zero permissions required. 100% offline. No tracking, no data collection, no ads. What you calculate stays on your device. Perfect for students, developers, shoppers, freelancers, and anyone who needs quick math without breaking their workflow. Lightweight. Fast. Precise. Install QuickCalc now.