Unit & currency converter + calculator, 87 categories, tools, finance, math
🔢 Unit Converter is the all-in-one measurement, currency and calculation toolkit — rebuilt from the ground up with a clean modern design, 18 color themes, and a huge 87 unit categories (one of the most complete collections on the Play Store).
🌍 Over 10 million downloads worldwide.
Students, engineers, tradespeople, cooks, travelers, DIYers — whatever you need to convert or calculate, it's here, and most of it works fully offline.
📐 87 UNIT CATEGORIES
Length, weight, area, volume, temperature, speed, pressure, energy, power, data, fuel, angle, force, torque, frequency and dozens more — from everyday units to advanced engineering scales.
💱 LIVE CURRENCY & PRECIOUS METALS
• 145 world currencies with regularly updated rates
• Live gold & silver prices
• Interactive rate-history charts (7D · 30D · 1Y)
• Rate alerts — get notified when a currency hits your target
• Add your own custom currencies
🔧 PRO ENGINEERING UNITS
Specialist converters including Plumbing, Electrical and Medical — built for professionals on the job.
🧰 48 HANDY TOOLS
Resistor & capacitor color codes ▸ AWG/SWG wire gauge ▸ scientific calculator ▸ password generator ▸ periodic table ▸ compass ▸ bubble level ▸ protractor & ruler ▸ stopwatch ▸ Morse code ▸ time-zone converter ▸ screen flash — and many more.
💰 20 FINANCE CALCULATORS
Loan & EMI, simple/compound interest, mortgage, tax, discount, ROI, CAGR and more.
🧮 22 MATHS CALCULATORS
Percentage, fractions, algebra, geometry, statistics, GCD & LCM, permutations & combinations and more.
✨ POWERFUL EXTRAS
📄 Export results to PDF & CSV
☁️ Back up & sync with Google Drive
⭐ Favorites for one-tap access
🕘 Unlimited, searchable history
⚡ Batch convert & side-by-side compare
🧩 Create custom units
📲 Home-screen widgets & app shortcuts
🎨 MAKE IT YOURS
◆ 18 stunning color themes (Deep Sea, Coral Reef, Solar Flare and more)
◆ Light & dark mode
◆ Clean, modern Material design
◆ Available in 30+ languages
WHY YOU'LL LOVE IT
✓ 87 categories — more than most converter apps offer
✓ Works offline (currency refresh needs internet)
✓ Fast, accurate and easy to use
✓ Free to download — go premium to remove ads and unlock extra themes, cloud sync and more
🔐 PERMISSIONS & WHY WE USE THEM
We're a utility app and request only the essentials — no location, contacts, camera, microphone or storage access.
★ Internet & network access — to fetch live currency, gold & silver rates and sync your cloud backup.
★ Notifications — to deliver the currency rate alerts you set.
★ Advertising ID — used to show ads in the free version only.
★ Google Play billing — to remove ads and unlock premium features.
Exports use Android's built-in file picker, so no storage permission is required.
Download Unit Converter and get every conversion, calculator and tool in one beautifully designed app. 🚀