Solve any quadratic in seconds. Enter real numbers for a, b, and c, then read off roots, discriminant, and root type. Over 73 % of U.S. high-schoolers use calculators for algebra homework (NCES, 2021).
Use this browser-based calculator to add, subtract, multiply, divide or find square roots in three clicks. Enter two values (e.g., 7.3 and 2.8), pick an operation, press “Calculate,” and the tool returns a result rounded to 4 decimal places. JavaScript uses IEEE 754 double precision, giving up to 15 significant digits—enough for most engineering tasks (IEEE 754-2019).
Use our Roth IRA Calculator to see how a $10,000 starting balance plus $600 monthly contributions could grow to roughly $460,000 in 25 years, tax-free (IRS Pub. 590-B, 2023).
Estimate your VA disability pay by entering each disability percentage, your family details, then pressing “Calculate.” A 70 %, 10 %, 10 % profile with one child and no spouse yields about $1,717 monthly (2024 pay table) (VA.gov, 2024). The calculator mirrors VA’s “efficiency” formula and rounds to the nearest 10 %.
Enter loan amount, rate, term and payment frequency; the calculator applies the standard amortization formula to return payment, total interest and an optional schedule. For example, a $10 000, 5-year loan at 5 % costs roughly $189 each month (CFPB, 2024).
Unlock the secrets of your birth date with our powerful Birthday Calculator! Discover your exact age, zodiac sign, life path number, and more. From astrological insights to numerological significance, explore the hidden meanings behind your special day. Ready to uncover fascinating facts about yourself? Calculate now!
The calculator converts your details into a daily-calorie target using Mifflin-St Jeor BMR and an activity factor. A 35-year-old, 85 kg, 178 cm male who is lightly active gets ≈2,467 kcal TDEE; to lose 7 kg in 12 weeks he’ll aim for ≈1,825 kcal/day—a 642 kcal deficit. Losing 0.5–1 kg per week is the range “associated with sustainable success” (CDC, 2023).
Quickly find your savings, sales-tax and final bill: just type the original price, discount %, and optional tax %. The tool applies standard percentage math and rounds to the nearest cent, mirroring checkout systems. U.S. shoppers save an average 24 % during major holiday sales (Adobe Digital Insights, 2022).
Need to spot growth or decline instantly? Enter the starting and ending numbers—our calculator returns the exact percent change in one click. Percent change appears in 95 % of Fortune 500 earnings releases (PwC 10-K Trends 2022) and remains the simplest, standardised way to compare periods or categories.
