Unit Converter & Calculator

Convert anything, calculate everything, and handle your documents completely offline. Convertify is an all-in-one unit converter and calculator app with 5,000+ units across 90+ categories, 80+ practical calculators, and a full offline PDF and image studio. No internet needed, no sign-up, and no data leaving your phone. UNIT CONVERTER: 5,000+ UNITS, OFFLINE • Length: cm to inches, mm to inches, feet to meters, miles to km • Weight: kg to lbs, grams to ounces, tola to gram, quintal to kg • Temperature: Celsius to Fahrenheit, Kelvin • Area: square feet to square meters, gaj, bigha, marla, kanal, acre, hectare • Volume: litres to gallons, ml to cups, cooking measurements • Speed, pressure (psi to bar), power (hp to kW), energy, torque • Data storage: KB, MB, GB, TB and data transfer rates • Fuel economy, density, frequency and dozens more engineering units • Currency converter with cached exchange rates and crypto (Bitcoin, Ethereum) that keeps working offline • Search any unit instantly, save favourites, reuse recent results 80+ CALCULATORS • Finance: EMI and home loan calculator, SIP, compound interest, GST, discount, ROI, full amortisation schedule • Health: BMI, BMR, body fat, ideal weight, calorie needs, pregnancy due date • Construction: concrete volume, bricks, tiles, paint coverage, steel weight • Math: percentage, algebra, statistics, 2D and 3D geometry • Date and time: age calculator, days between dates, duration • Electrical, automotive and business margin formulas Every result comes with a step-by-step breakdown, not just a number. STUDIO: PDF & IMAGE TOOLS, 100% OFFLINE Things you would normally upload to a website, done privately on your phone: • Image to PDF, JPG to PDF, PDF to image • Merge PDF, split PDF, extract pages, reverse order, page numbers • Compress PDF, text to PDF • Document scanner with on-device OCR: scan a receipt or page and copy the text out • Image compressor, photo resizer, crop, rotate, watermark, collage • JPG to PNG and WebP converter • QR code generator and barcode maker for links, Wi-Fi, contacts HISTORY THAT REMEMBERS Every conversion, calculation and export is saved locally in a searchable history with filters, trash and one-tap copy. WHY PEOPLE KEEP IT INSTALLED • Works fully offline: on a plane, on site, in a basement, or abroad without roaming • Private: files and images are processed on your device • Light and fast, small download, no loading screens • Dark and light themes Built for students, engineers, site supervisors, cooks, travellers, traders and anyone tired of searching "kg to lbs" every single time. Free to use. Download Convertify.