The app calculates the pH value of two mixed liquids. Users enter the pH and volume for both liquids and then press calculate to see the mixed pH-value.
by Erik Moller★ 0.00 ratingsUtilitiesFreeData updated 2026-10-04
Calculate historical prices and convert to today's
Calculate historical currency values from 1800 to 2025. Convert prices using 22 currencies including US Dollar, Euro, British Pound, and others. Adjust for and view adjusted values over time.
Convert units across 20 categories with over 400 options, including mixed units like feet and inches. Add widgets for quick access. View conversion history and share results.
Calculate and mortgage payments with customizable terms, interest rates, and frequencies. Display breakdowns of interest and principal. Estimate repayment time. Compare options. Export results via email or file. Save details for future reference.
Calculator determines resistance value based on colored bands. Users select band count and for each band. The displays the resistance value and visual representation of selected colors. Helps configure electronics projects.
Calculate fractions and mixed numbers without converting to decimals. Perform addition, subtraction, multiplication, and division. Convert between fractions and decimals. Input measurements for precise calculations.
Perform complex calculations with scientific formulas and unit conversions. Access calculation history via Spotlight and 3D Touch. Use widgets for quick access and history integration. Sync with Apple Watch for notifications and basic calculations.
Offers standard and advanced math functions including percent, negative sign, memory, brackets, and history. It includes trigonometry, roots, exponents, and logarithms.
Calculate materials with 10 tools for gravel, soil, mulch, concrete, pavers, retaining walls, grass seed, sod, area, and volume. Input dimensions in inches, feet, yards, centimeters, or meters. Output results in US customary or metric units.
Calculate glomerular filtration rate using the MDRD Study equation. Input creatinine value, age, race, and gender. Provide results for medical professionals.
Calculate fluid rates and pressure loss in pipes. Determine diameter or maximum length based on rate and pressure drop. Find friction loss and rate using built-in formulas. Input dimensions and fluid properties for accurate results.
Calculate of values, increase or decrease values by a percentage, and find the original value before a percentage change. Set custom values, view step-by-step calculations, and save results for future reference.
Convert units across 50 categories and over 1000 options, including mixed units like ft + in or m + cm. Add frequently used conversions to a favorites list. Save and share conversion results.
Perform general calculations including addition, subtraction, multiplication, division, and square roots. Use memory functions for storage and retrieval. Apply thousands separators and handle numbers up to 60 digits.
Estimate volume for a given area. Calculate required ready-mix bags. Input dimensions to determine quantities. Provide clear results for construction planning.
Calculate percentages, discounts, and tips. Input total cost, tip , and number of people to determine total value, tip amount, and individual share. Set currency preferences and perform -based calculations.
Calculate based on currency pair, risk percentage or amount, and stop loss in pips. Supports all major currency pairs and crosses. Save previous calculations for quick reference. Adjust inputs for precise trading strategies.
Practice arithmetic operations including addition, subtraction, multiplication, and division with numbers up to 1000. Solve mixed problems tailored to different grade levels. Work with fractions and decimals.
Calculate accumulation and payout phases with built-in calculators. Input variables to determine payment amounts and timing. View results for informed financial planning.
Calculate electrical values using formulas for voltage, current, resistance, power, and more. Determine wire size and voltage drop. Perform transformer and generator calculations. Convert between electrical units.