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Calculaterz

Scientific • Algebra • Memory • History

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Scientific
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Shortcuts

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More Calculaterz

Calculaterz v2.0 — More tools coming soon

Loan Calculaterz

Monthly Payment • Total Interest • Amortization

LOAN Standard amortizing loan

Loan Details

$
%

Results

Monthly Payment
$0.00
Total Payment
$0.00
Total Interest
$0.00
Principal vs Interest 0%
PrincipalInterest

Amortization Schedule

#PaymentPrincipalBalance
Enter details to see schedule

Standard amortizing loan formula. Results are estimates only.

Auto Loan Calculaterz

Vehicle Price • Trade-in • Financing

AUTO Vehicle financing calculator

Vehicle Details

$
$
$
%

Results

Loan Amount (financed)
$0.00
Monthly Payment
$0.00
Total Cost
$0.00
Total Interest
$0.00
Principal vs Interest 0%
PrincipalInterest

Amortization Schedule

#PaymentPrincipalBalance
Enter details to see schedule

Vehicle financing estimate only. Taxes, fees, and insurance not included.

Income Tax Calculaterz

US Federal Income Tax • Progressive Brackets

FEDERAL Marginal rates applied progressively

Input Details

$
Custom Flat Rate

This shows gross federal tax only. Actual liability may be lower after deductions, credits, and other adjustments.

Results

Gross Income
$0.00
Total Income Tax
$0.00
Net Income (After Tax)
$0.00
Effective Tax Rate 0.00%
0%50%

Bracket Breakdown

Enter income to see brackets

Based on IRS published federal tax brackets. For estimation purposes only.

BMI Calculaterz

Body Mass Index • Health Category

HEALTH WHO standard classification

Your Measurements

cm
kg

BMI is a screening tool, not a diagnostic one. It doesn't account for muscle mass, bone density, or body composition. Consult a healthcare provider for a full assessment.

Results

Your BMI
—
Enter your details
UnderweightNormalOverweightObese
018.5253040+
Healthy Weight Range (BMI 18.5–24.9)
—

All Categories

Underweight
< 18.5
Normal weight
18.5 – 24.9
Overweight
25 – 29.9
Obese Class I
30 – 34.9
Obese Class II
35 – 39.9
Obese Class III
≥ 40

Based on WHO BMI classification. For informational purposes only.

Age Calculaterz

Calculate age from birthdate

AGE Standard birthdate interval calculation

Details

Result

Age Result
Select dates to calculate age.

Based on standard gregorian calendar age calculations.

GPA Calculaterz

Calculate semester GPA on a 4.0 scale

GPA Standard 4.0 Scale

Courses

Result

Your GPA
0.00
Enter your grades
0.02.03.04.0

Courses with empty grades or credits will be excluded from the GPA calculation.

Standard letter weights: A+/A=4.0, A-=3.7, B+=3.3, B=3.0, B-=2.7, C+=2.3, C=2.0, C-=1.7, D+=1.3, D=1.0, F=0.0

Grade Calculaterz

Calculate your overall class grade based on weighted categories

GRADE Weighted average calculation

Assignment Groups

Class Grade

Current Score
0.00%
Letter Grade: —
0%60%80%100%

Grade ranges: A ≥ 90%, B ≥ 80%, C ≥ 70%, D ≥ 60%, F < 60%.

Supports weights normalization to calculate correct standing mid-semester.

Salary Calculaterz

Convert between hourly, weekly, biweekly, monthly & yearly pay

PAY 52-week year, configurable hours

Income Details

$

Converted Amounts

Per Hour
$0.00
Per Week
$0.00
Biweekly
$0.00
Monthly
$0.00
Yearly
$0.00

Based on a 52-week year. Overtime, bonuses, and deductions not included.

Credit Card Calculaterz

Payoff time • Total interest • Extra payment impact

CARD Monthly compounding, minimum payment

Card Details

$
%
%
$

Payoff Summary

Time to Pay Off
—
Total Interest Paid
$0.00
Total Amount Paid
$0.00
Payoff Date
—

Assumes consistent payments with no new charges. Actual results may vary.

Finance Calculaterz

Compound interest • Investment growth • Monthly contributions

FINANCE Monthly compounding with regular contributions

Investment Details

$
$
%
years

Results

Future Value
$0.00
Total Contributions
$0.00
Total Interest Earned
$0.00
Contributions vs Interest 0%
ContributionsInterest

Based on monthly compounding. Does not account for taxes, fees, or inflation.

Interest Rate Calculaterz

APR to APY • Compounding comparison • Effective rate

RATE Nominal vs effective annual rate

Rate Details

$
%
years

Results

Effective Annual Rate (APY)
0.00%
Future Value (monthly compounding)
$0.00
Total Interest Earned
$0.00

Compounding Comparison

FrequencyAPYFuture Value
Enter details to see comparison

APY = (1 + APR/n)^n − 1 where n is compounding periods per year.

Sales Tax Calculaterz

Before-tax price • After-tax total • Reverse calculation

TAX Standard & reverse sales tax

Calculation Mode

$
%

Reverse mode calculates the original price before tax from the total amount you paid.

Results

Price (before tax)
$0.00
Sales Tax Amount
$0.00
Total (after tax)
$0.00

Sales tax rates vary by state and locality. This is for estimation purposes only.

Calorie Calculaterz

BMR • TDEE • Calories for weight goals

CALORIES Mifflin-St Jeor equation

Your Details

cm
kg

Results

Basal Metabolic Rate (BMR)
0 kcal/day
Total Daily Energy Expenditure (TDEE)
0 kcal/day

Calories for Goals

Extreme weight loss (−25%) 0 kcal
Weight loss (−20%) 0 kcal
Mild weight loss (−10%) 0 kcal
Maintain weight 0 kcal
Mild weight gain (+10%) 0 kcal

Based on the Mifflin-St Jeor equation. Individual needs may vary. Consult a professional.

Body Fat Calculaterz

Navy circumference method • Body fat percentage

BODY FAT US Navy standard method

Body Measurements

cm
cm
cm
kg

Results

Body Fat (Navy Method)
—
Enter your measurements
Fat Mass
—
Lean Mass
—

Body fat estimation using US Navy circumference method. Accuracy may vary.

BMR Calculaterz

Basal Metabolic Rate • Multiple formulas • Comparison

BMR Mifflin-St Jeor, Harris-Benedict & Katch-McArdle

Your Details

cm
kg
%

Formula Comparison

FormulaBMR (kcal/day)
Enter details to calculate

Daily Calories at Activity Levels

Activity LevelCalories
Enter details to calculate

Formulas: Mifflin-St Jeor (1990), Revised Harris-Benedict (1984), Katch-McArdle (requires body fat %).

Pregnancy Calculaterz

Due date • Current week • Trimester • Milestones

PREGNANCY 40-week gestational calendar

Dates

Results

Estimated Due Date
—
Current Gestation
—
Trimester
—

Key Milestones

Enter dates to see milestones

Based on standard 40-week gestational calculation. Due date is an estimate — only ~5% of births occur exactly on the EDD.

Date Calculaterz

Date difference • Add & subtract days

DATE Two calculation modes

From / To

Result

Select dates to calculate

Date calculations use standard Gregorian calendar accounting for month lengths and leap years.

Time Calculaterz

Add & subtract time • Convert between units

TIME Time arithmetic & unit conversion

Time Values

HoursMinutesSeconds
HoursMinutesSeconds

Result

00:00:00
Enter time values to calculate

Time calculations assume 24-hour format. Negative results shown as —.

Hours Calculaterz

Work hours • Shift duration • Earnings

HOURS 12/24-hour shift calculator

Shift Details

:
:

Earnings (optional)

$
/hr

Results

Total Hours Worked
0 hr 0 min
Decimal Hours
0.00 hrs

Overtime, double time, and payroll deductions are not included.

Unit Converter

Length • Weight • Temp • Volume • Area • Speed • Data • Pressure • Energy

—

Quick Conversions

1 × base = result

All conversions are approximate and rounded to 6 decimal places where applicable.