Calculator: Scientific & Units

Tired of a system calculator that changed after an update? Clear keys, a real cursor you can tap anywhere in the expression, vibration you can turn off, and a layout that stays the way you know it. Plus a unit converter and eight everyday calculators, all offline, with no ads and no permissions.

CALCULATOR
• See the result as you type, and tap anywhere in the expression to edit it
• Exact decimal math: 0.1 + 0.2 is exactly 0.3
• Percentages work the way you expect: 50 + 10% = 55
• Scientific panel: sin, cos, tan and their inverses, sinh, cosh, tanh, log, ln, powers, roots, factorial, |x|, mod, π and e
• Degrees or radians
• Memory keys (MC, MR, M+, M−) and Ans for the previous result
• History: tap to reuse a calculation, long press to copy the result
• Long press backspace to clear everything
• Show results as decimals, exact fractions (1/3, 22 1/7) or scientific notation
• High contrast mode with large, bold keys that are easy to see
• Home screen widget shows your last result, tap it to keep calculating
• Landscape mode shows all keys at once

UNIT CONVERTER
• 12 categories: length, area, volume, weight, temperature, speed, time, data, pressure, energy, power and angle
• See every unit at once as you type
• Pin the units you use most to keep them on top

EVERYDAY CALCULATORS
• Loan: monthly payment, total interest and a full payment schedule, with fixed payment or fixed principal
• Discount: final price and how much you save, with an extra discount
• Tip & Split: tip and each person's share, with optional rounding up
• Percentage: X% of Y, X as a percent of Y, and percentage change
• Date: days between two dates, add or subtract days, weeks, months or years, and age
• BMI: metric or imperial, with WHO categories and the normal weight range for your height
• Programmer: convert between HEX, DEC, OCT and BIN, with AND, OR, XOR, NOT and shifts
• Unit price: compare up to four options to find the better deal

MORE
• Thousands separator and decimal places to suit your taste
• Quick Settings tile to open the calculator from the notification panel
• Light and dark theme

PRIVATE BY DESIGN
• No account, no permissions and no internet access. Your numbers never leave your phone
• No ads

17 LANGUAGES
English, 简体中文, 繁體中文, 日本語, 한국어, Español, Português, Français, Deutsch, Italiano, Русский, Türkçe, Bahasa Indonesia, Tiếng Việt, ไทย, العربية and हिन्दी.

BMI is a general reference for adults and not a medical diagnosis.

Questions or feedback: contact@licheng.tech