Everything You Need to Convert

Designed from the ground up for speed, accuracy, and elegance — on phone and tablet.

60 Categories, 630 Units

From physics and mechanics to clothing sizes and resistor color codes — the most comprehensive conversion library in your pocket, now bigger than ever.

Favorites & History

Pin your most-used conversions for one-tap access, and review your recent conversion history at any time.

Phone & Tablet Ready

Adaptive layout for portrait and landscape on any device — including a dedicated split-panel view optimized for tablets.

Instant Search

Find any unit or category in seconds with the built-in search — no scrolling through endless lists.

Configurable Display

Choose your preferred decimal places and thousands separator. Numbers display exactly the way you want them.

Advanced Unit Types

Supports special inputs like RGB/hex colors, resistor color bands, numeral systems (binary/octal/hex), SMPTE timecodes, typography, and musical intervals.

New in 2.50

Six Powerful Category Groups

60 categories and 630 units, organized by discipline so you always know where to look.

Version 2.50 adds 14 new categories — highlighted in orange below.

⚙️ Physics & Mechanics

Mass · Distance · Area · Volume · Temperature · Pressure · Speed · Acceleration · Density · Concentration (solution) · Concentration (molar) · Force · Torque · Moment of Inertia · Angle · Angular Speed · Angular Acceleration · Volumetric Flow · Viscosity (dynamic) · Viscosity (kinematic) · Sound Level

⚡ Energy & Electrical

Energy · Power · Resistance (incl. Resistor Color Code) · Electric Current · Resistivity · Frequency · Period

💡 Light & Radiation

Luminance · Illuminance · Radioactivity · Radiation Absorbed · Radiation Exposure · Radiation (dose rate) · Carbon-14 Dating

💾 Digital & Media

Data Storage · Data Transfer · Data-transfer Duration · Timecode / Frames (SMPTE) · Video Size · Numeral System (Binary · Octal · Hex · RGB) · Typography · Musical Intervals

🏠 Everyday

Time · Fuel Economy · Navigation · SI Prefixes

👕 Clothing & Sizes

Men's Suits · Men's Shirts · Men's Shoes · Socks · Women's Suits · Women's Blouses · Junior Dresses · Women's Shoes · Stockings · Bra (Band) · Bra (Cup) · Ring Sizes · Hat Sizes

See It in Action

Beautiful on every screen size — from pocket to desktop.

Home Screen – Browse Categories

Phone Portrait – Mass Conversion

Phone Landscape – Split Panel

Tablet – Home

Tablet – Mass Conversion

Tablet Landscape – Sidebar View

Tablet Landscape – Resistor Color Code

Engineered for Precision

A thoughtfully designed conversion experience from browse to result.

Browse or Search

Open the app and browse 60 categories organized into 6 groups, or instantly search for any unit or category by name.

Select Your Units

Tap a category to enter the converter. All available units are listed — tap any unit to make it the active input.

Enter Your Value

Use the adaptive keypad — standard decimal, integer, hexadecimal, or special input modes depending on the unit type.

See All Conversions Instantly

All other units in the category update in real time as you type — no tapping a "convert" button required.

Save Your Favorites

Pin units you use most often. Your favorites appear front-and-center for instant one-tap access next time.

Review History

Every conversion is saved to your history — review, repeat, or share past results without retyping.

Get ConvertDroid Today

Just $0.99 — no ads, no tracking, no subscriptions. Your data stays on your device. Start converting smarter.

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