QuickCalculator vs Drill Bit Converter

QuickCalculator is an all-in-one calculator designed for iPhone, iPad, and Mac. It brings standard, scientific, programmer, and business calculators together with converters, equation solvers, graphing, and practical everyday tools. CALCULATOR MODES: • Standard calculator with arithmetic, parentheses, and percentage • Scientific: trig, log, ln, factorial, powers, roots, constants (pi, e) • Programmer: binary, octal, decimal, hex with bitwise operations (AND, OR, XOR, NOT, shifts) • Business: tax, discount, profit margin, and loan calculators UNIT CONVERTER: • 6 categories: Length, Weight, Area, Volume, Temperature, Speed • 40+ units with real-time conversion • Cooking converter with 10 ingredient units and recipe scaling ADVANCED TOOLS: • Equation solver: quadratic (ax²+bx+c) and linear systems (2x2, 3x3) • Matrix calculator: add, subtract, multiply, transpose, determinant, inverse • Graphing with expression visualization • Statistics: count, mean, median, variance, standard deviation HEALTH: • BMI calculator with category classification • BMR calculator (Mifflin-St Jeor) with gender-specific results MEMORY & HISTORY: • 50 memory slots with M+, M-, MR, MS, MC • Calculation history with one-tap restore, search, date filters, and per-tool filters • Export history as Markdown, CSV, or JSON • Store history locally or in a supported cloud or remote location CUSTOMIZATION: • Precision control: 0–12 decimal places • Angle units: Radians, Degrees, Gradians • Haptic feedback on supported devices • 20+ theme colors with dark and light modes • Two-pane desktop layout with memory and history sidebar CURRENCY & EVERYDAY TOOLS: • Currency converter with live exchange rates, rate charts, and freshness status • Date and time calculator: date difference, business days, time zones, and time arithmetic • Percentage, discount, tax, tip, and bill-splitting calculators • Loan and mortgage tools with prepayment and refinance comparisons • Tape calculator with an editable paper-roll history QuickCalculator Pro removes ads and supports continued development through an annual subscription or a one-time lifetime purchase. Terms of Use: https://kakitiro.com/quickapps/quickcalculator/terms/

If you have ever had to try to figure out which Fractional or Decimal bit is close enough to a particular Metric size, this is the app for you. Drill Bit Converter performs rapid conversions between Inch Fractional, Inch Decimal, Metric, and Gauge Drill Sizes. Simply select the unit of interest, type in a value, and the nearest equivalent of all other unis will be instantly displayed. When conversions to Inch Fractional or Gauge sizes are not exact, the app will display the amount of error. You can then easily tell if you have an alternative drill bit on hand that is close enough for your project. The app also includes a help display to explain the key features of the app, and it includes several pdf files containing helpful reference charts for drill and tap conversions and selections. You can email or print these charts. Printing requires an Air Print Connection. We welcome your feedback and suggestions for improvement. Thanks for considering our offering.