Unit Converter - Offline Tools

Unit Converter handles everyday unit conversions and practical shopping calculations instantly without internet access. Enter a single number to view converted values across all related units simultaneously in a clean, fast, and completely offline utility.

■ 8 Core Unit Categories
· Area: Square meters (m²), Square kilometers (km²), Square feet (ft²), Acres, Hectares, Pyeong (Korean apartment floor area)
· Length: Meters (m), Centimeters (cm), Millimeters (mm), Kilometers (km), Inches (in), Feet (ft), Yards (yd), Miles (mi)
· Weight & Mass: Kilograms (kg), Grams (g), Milligrams (mg), Pounds (lb), Ounces (oz), Metric tons
· Volume & Cooking: Liters (L), Milliliters (mL), Cups, Tablespoons (Tbsp), Teaspoons (tsp), Gallons (gal), Fluid ounces (fl oz)
· Temperature: Celsius (°C), Fahrenheit (°F), Kelvin (K)
· Speed: km/h, m/s, mph, knots
· Digital Data: Bytes (B), KB, MB, GB, TB
· Time: Seconds, Minutes, Hours, Days, Weeks, Months, Years

■ Everyday Shopping & Tax Calculators
· Price & Coupon Calculator: Check final payment amounts after single or stacked percentage reductions.
· Reverse Percentage: Find the exact percentage difference between original and final prices.
· VAT & Tax Breakdown: Split supply price and tax or add tax rates in one tap.
· Percentage Change: Calculate price increases, decreases, and compound differences.
· Unit Price Comparison: Compare two packages with different weights or volumes per 1g or 1mL to pick the better value.

■ Designed for Speed & Convenience
· Full Conversion Table: See every unit in the selected category side by side on a single screen.
· Favorites & Recent History: Pin frequent unit pairs (such as m² ↔ pyeong or lb ↔ kg) and recall recent inputs immediately.
· Visual Scale Gauge: Understand relative unit proportions with intuitive comparison bars.
· 100% Offline & Private: Works on airplanes and subways with zero network usage, no account sign-up, and no data collection.
· Responsive & Dark Theme UI: Optimized for phones, foldables, tablet two-pane split views, and comfortable dark mode.