Todas as Calculadoras

Loan installments with amortization chart, prepayment engine & rate comparison

Investment growth with inflation adj., tax layer, goal-seeking & real vs nominal

SIP corpus with step-up mode, XIRR & 3-scenario simulation

SI with flat vs reducing balance comparison & time conversion

Total & annual ROI with inflation-adjusted real returns

Pay period converter with local tax rules, allowances & net take-home

Stacked multi-discounts, reverse price & tax integration

Gross margin, markup, health indicator & total profit

Break-even units & revenue with contribution margin chart

Required down payment, PMI threshold, and time to save goal

Multi-debt snowball vs avalanche strategy comparison with payoff timeline

Present value of future cash flows with discount rate

Internal Rate of Return for a series of cash flows — investment viability

401k growth with employer match, tax-deferred compounding & withdrawal projections

Sales commission with tiered slabs, base salary and total earnings

Asset depreciation using straight-line, declining balance & sum-of-years methods

Monthly budget planner with income, expense categories and savings rate

4-year college cost with tuition inflation, savings gap and monthly savings needed

Home Equity Line of Credit: available equity, draw period payments and repayment schedule

Monthly lease payment with money factor, residual value and lease vs buy comparison

Bond price, yield to maturity, current yield, duration and premium/discount analysis

Certificate of Deposit maturity value, interest earned and multi-term comparison chart

Tax-free retirement growth with 2024 contribution limits, age-based projections and withdrawal income

Present value and future value of fixed payment annuity streams with period visualization

Defined benefit pension income by years of service, salary and benefit multiplier

Estimate Social Security benefits by claiming age with break-even analysis and cumulative comparison

Required Minimum Distribution from retirement accounts at age 73+ using IRS life expectancy tables

Federal estate tax with 2024 exemption, deductions and effective rate calculation

Marriage tax bonus or penalty comparing single vs married filing jointly using 2024 US tax brackets

Monthly boat loan payment with total cost breakdown including maintenance and insurance estimates

Consolidate multiple debts into one loan — compare monthly savings, total interest and break-even timeline

Future value of an investment with lump sum, recurring contributions and compound growth chart

Compound Annual Growth Rate and arithmetic mean return with visual growth comparison

Full loan amortization schedule with month-by-month payment breakdown, principal vs interest chart and extra payment savings

Time Value of Money engine — solve for any of PV, FV, PMT, Rate or Periods given the other four

Investment growth with inflation adjustment, contribution step-up, tax on gains and real vs nominal return comparison

Universal loan calculator for personal, business, student and auto loans — monthly payment, total interest and payoff date

National Pension System corpus with Tier-I & Tier-II projections, tax savings and annuity income estimate

Employee Provident Fund maturity with employer & employee contributions, interest compounding and tax-free status

Stock investment return with dividend reinvestment, capital gains and annualized CAGR comparison

Net Present Value of a series of cash flows with IRR comparison and investment decision signal

Rebalance a multi-asset portfolio to target allocations — see exact buy/sell amounts needed

Dividend yield, annual income, payout ratio and dividend growth rate projection

BMI with WHO risk classification, ideal weight & body fat estimate

TDEE with 5 goals, 2 formulas, macros & weekly weight projection

Mifflin vs Harris-Benedict with TDEE at all 5 activity levels

Body fat % using US Navy method with category classification

4-formula comparison: Devine, Miller, Robinson & Hamwi with BMI range

Protein/carbs/fat targets by goal with donut chart

Daily water needs by weight, activity & climate

5 training zones using Karvonen formula

Due date via Naegele's Rule with milestone tracker

1RM via 3 formulas + full training percentage table

Adaptive cycle prediction with ovulation window, fertile days, phase visualization, irregular cycle detection & health insights

Predict your ovulation date and fertile window based on your cycle length

Calculate your exact fertile days for natural conception planning

Estimate your implantation window — when a fertilized egg attaches to the uterus

Calculate ideal bedtimes and wake times based on 90-min REM sleep cycles

Calories burned by 30+ exercises using MET values and body weight

Determine your somatotype (ectomorph, mesomorph, endomorph) with training advice

Glomerular filtration rate (kidney function) using CKD-EPI formula

Body Surface Area using Mosteller, DuBois and Haycock formulas with drug dosage reference

Blood Alcohol Content by drink type with legal limits, time-to-sober chart and safety tips

Lean muscle mass using Boer, James and Hume formulas with fat vs lean body composition chart

Daily protein needs by body weight, activity level and goal with food source breakdown

Healthy weight range using BMI, Hamwi, Devine and Miller formulas with BMI zone chart

Daily fat targets with saturated/unsaturated breakdown and full macro distribution chart

US Army body fat using circumference measurements with pass/fail against age-based regulation limits

Estimated conception date from due date or LMP with implantation window and pregnancy milestones

6 simultaneous modes: X% of Y, what %, change, increase & decrease

Expression parser with trig, log, exp, history & DEG/RAD toggle

Mean, median, mode, std dev, IQR, quartiles & histogram

Solve ax²+bx+c=0 with roots, vertex & parabola chart

Find any triangle side with area and perimeter

Add/subtract/multiply/divide with simplified result & mixed number

Area & perimeter of 5 shapes: rectangle, circle, triangle, square, trapezoid

Instant prime check with factors and first 25 primes reference

Calculate log base 2, 10, e, and any custom base with step-by-step solution

Simplify ratios, find missing values, and scale recipes or mixtures

Least Common Multiple and Greatest Common Factor with step-by-step solution

All factors and prime factorization of any integer with visual breakdown

Volume of cube, sphere, cylinder, cone and other 3D shapes

Solve any triangle — sides, angles, area, perimeter (SSS, SAS, ASA, AAS)

Circumference, area, diameter and arc length from radius or diameter

Standardize data points with Z-score, percentile rank and normal distribution

nPr and nCr calculations with factorial steps and formula explanation

Mean, weighted mean, and running average for any dataset

Matrix addition, subtraction, multiplication, determinant and inverse operations

Solve single and system of linear equations with step-by-step solution

Generate random integers or decimals with custom range and count

Calculate percent error between experimental and theoretical values

Surface area of 6 3D shapes: cube, sphere, cylinder, cone, pyramid and rectangular prism

Calculate base raised to any power with scientific notation output and step-by-step display

Calculate nth root of any number with Newton's method steps and verification

Binary arithmetic (add, subtract, multiply) with step-by-step conversion and multi-base output

Arithmetic, geometric and Fibonacci sequences with nth term formula, sum formula and first 10 terms

Single and compound event probability (AND/OR) with odds, complement and expected value

Confidence interval for sample data with margin of error and statistical interpretation

Required sample size for surveys and A/B tests by confidence level and margin of error

2D distance between two coordinates with midpoint, slope and line equation

Weighted GPA with Dean's List detection, semester tracking & what-if simulator

Multi-subject percentage with grade estimation, visual charts & reverse mode

Bunk planner, safe leave estimator & attendance warning system with subject tracker

Weighted final grade with scenario analysis, pass/fail prediction & multiple grading scales

CGPA conversion with 5 university formulas incl. HEC Pakistan, VTU & Anna University

Official IELTS band scoring with L/R/W/S section analysis & university eligibility check

Digital SAT section scoring with percentile rank & university admission comparison

Pomodoro timer with focus analytics, streak tracking & productivity insights

GPA goal planner with future semester simulation & feasibility analysis

Score needed on pending work with weighted assignments & what-if grade scenarios

Calculate final grade from assignments, quizzes, midterms & finals with custom weights

Verbal + Quantitative raw-to-scaled score conversion with percentile rank & grad school comparison

TOEFL iBT section scores to total band with university eligibility & IELTS equivalent

Enter scholarship GPA requirement + current GPA to get a semester-by-semester roadmap

Add any number of tasks with individual weights — instantly see impact on final course grade

Combine multiple semesters with credit hours into an accurate cumulative GPA

Raw-to-composite ACT scoring with section breakdown, percentile & college readiness benchmarks

Marks obtained ÷ total marks → percentage + letter grade across US, UK, Pakistani & Indian scales

Convert GPA between 4.0, 5.0, 7.0, 10.0 scales and percentage — with country presets

Estimate class rank from GPA and class size distribution — useful for college applications

Input exam dates + subjects + available hours → auto-generate a daily study schedule

GMAT Focus Edition section scores to total composite with percentile & MBA program comparison

Given minimum passing mark + current average, calculate score needed on remaining assessments

Paste text → Flesch-Kincaid grade level + reading ease score for students & educators

GPA + SAT/ACT + extracurriculars → rough acceptance probability for tiered university types

9 units: mm, cm, m, km, in, ft, yard, mile, nautical mile

8 units: mg, g, kg, tonne, oz, lb, stone, carat

Bidirectional C/F/K — type any field, all update instantly

6 units: m/s, km/h, mph, knot, ft/s, Mach

6 units: B, KB, MB, GB, TB, PB

7 units: cm², m², km², ft², acre, hectare, mile²

Exact age with zodiac, next birthday countdown, live seconds & time-of-birth precision mode

Days between dates with business-days-only mode

Live countdown to any event with real-time seconds

Daily/weekly/monthly hours with break deduction & earnings

Trip cost with passenger split, round trip & monthly estimate

Calculate EV battery charge time, added range, and cost with various charger levels

Integer or decimal random numbers — up to 50 at once

Secure passwords with entropy bits, strength rating & crack time

Bidirectional: numbers to Roman and back (1–3999)

Words, chars, sentences, paragraphs, read time & speak time

Encode & decode Base64 with copy and reverse button

Convert time between 50+ world time zones with DST support

Estimate reading time for any text, book, or article by word count

Concrete volume and bags required for slabs, walls, footings and columns

Cement bags, sand and aggregate for any mix ratio and volume

Sand volume and weight for landscaping, concrete mix and foundation work

Gravel cubic yards and tons for driveways, paths and drainage

Asphalt weight and cost for roads and driveways

Paint quantity for walls, ceilings and rooms with coverage rate and cost

Roofing area, shingles and material cost with pitch and waste factor

Total square footage for rooms, flooring, tiling and painting projects

Convert dimensions to cubic yards for bulk material ordering

Project cost estimate with area, labor rate, material cost and contingency

Total electrical load, recommended breaker size for home appliances

Volume capacity and flow rate of cylindrical pipes with unit conversion

Mass, volume and density — solve for any one given the other two

Pressure from force and area with unit conversions (Pa, PSI, bar, atm)

IP subnet mask, network/broadcast address, usable hosts and CIDR notation

Hex arithmetic and conversion between hex, decimal, binary and octal

Convert text to ASCII codes, Unicode code points and UTF-8 bytes

File download/upload time at any internet speed with unit conversions

Network bandwidth requirements for concurrent users and usage patterns

Generate MD5, SHA-1, SHA-256, SHA-512 hashes from any text input

Password entropy, strength score, crack time estimate and improvement tips

Calculate IP address range from network address and subnet mask

Convert between binary, octal, decimal and hexadecimal number systems

Generate random strings for testing, tokens and security applications

Calculate selling price from cost and markup percentage or reverse-calculate margin

Inventory turnover ratio, days in inventory and efficiency vs industry benchmark

Economic Order Quantity for minimum inventory costs with reorder point

Employee hours with break deduction, overtime calculation and weekly totals

Overtime pay with regular/OT/double-time rates and total weekly earnings

Convert annual salary to hourly, daily, weekly and monthly equivalent rates

Real cost of meetings by attendee count, hourly rate and duration

Marketing conversion rate, leads needed, revenue potential and optimization impact

CLV calculation with average order value, purchase frequency and retention

Ad campaign cost-per-click, cost-per-acquisition and ROAS metrics

True cost of employment: salary, benefits, taxes, overhead and productivity