Category
Calculators blocks for WordPress
50 Gutenberg blocks in Blockenberg for tools, lead magnets, and interactive widgets. Install the free plugin, then search the block name in the inserter.
Get Blockenberg
Blockenberg is free on WordPress.org. After activation, open the inserter and look under Calculators.
Age Calculator
An interactive age calculator that computes exact age in years, months, and days from a birth date. Includes next birthday countdown, total days lived, zodiac sign, and day of week born.
Aspect Ratio Calculator
Calculate image or video dimensions, aspect ratios, and common presets for designers.
Binary & Text Converter
Convert text to binary, hexadecimal, and octal — and back. Includes an interactive ASCII table.
BMI Calculator
Interactive Body Mass Index calculator with metric and imperial units, animated result gauge, weight category indicator, and fully customizable styling.
Body Fat Calculator
Calculate body fat percentage using the US Navy method based on height, neck, waist, and hip measurements. Shows body fat category and health range.
Break-Even Calculator
Calculate break-even point, profit zone, and contribution margin for business analysis.
Monthly Budget Planner
Interactive monthly budget planner with income and expense categories. Track spending, visualise balance and see how much is left to allocate.
Calorie Calculator
BMR and TDEE calorie calculator using the Mifflin-St Jeor equation. Supports metric and imperial units, activity levels, and shows macro nutrient breakdown.
Carbon Footprint Calculator
Estimate your annual CO2 equivalent emissions across transport, home energy, diet, and shopping categories.
Compound Interest Calculator
Calculate compound interest growth with configurable compounding frequency, monthly contributions, and a year-by-year breakdown.
Currency Converter
Interactive currency converter supporting 30+ world currencies with instant conversion, swap button, common pairs quick-select, and customizable styling. Uses built-in indicative rates.
Date Difference
Calculate the exact difference between two dates — years, months, days, total days, weeks, hours, and working days.
Debt Payoff Calculator
Compare Avalanche vs Snowball debt payoff strategies. Enter multiple debts, set a monthly payment budget, and see exactly when you'll be debt-free and how much interest you'll save.
Discount Calculator
Calculate sale prices from discount percentages, find original prices from sale prices, or determine what discount percentage was applied. Three versatile calculation modes.
Electricity Cost Calculator
Calculate electricity costs for home appliances. Add appliances with wattage and daily usage, set your rate per kWh, and see daily, monthly and annual costs.
Fuel Calculator
Calculate road trip fuel costs, consumption, and CO₂ emissions. Supports MPG, L/100km, and km/L efficiency units with round-trip and cost-per-person options.
GPA Calculator
Interactive GPA calculator for students. Enter courses, credit hours, and letter grades to calculate cumulative GPA on a 4.0 or custom scale.
Grade Calculator
Calculate weighted average grades across multiple subjects or assignments. Shows overall grade with letter and percentage.
Heart Rate Calculator
Calculate target heart rate training zones based on age and formula.
Ideal Weight Calculator
Calculate ideal body weight using four major medical formulas — Hamwi, Devine, Robinson, and Miller — with a visual comparison and healthy BMI range.
Invoice Calculator
A line-item invoice builder with editable rows, discount, tax, and grand total.
Loan Affordability Calculator
Calculate how much home or loan you can afford based on annual income, existing debts, interest rate, and debt-to-income ratios. Ideal for real estate and finance sites.
Loan Calculator
Interactive mortgage and loan calculator with sliders for loan amount, interest rate, and term. Displays monthly payment, total interest, and total cost. Optional amortization schedule and doughnut chart.
Macro Calculator
Calculate daily macronutrients (protein, carbs, fat) based on TDEE and fitness goals.
Profit Margin Calculator
Calculate profit margin, markup, selling price and gross profit for any product or service.
Meeting Cost Calculator
Calculate the real cost of meetings based on number of attendees, hourly rates, and duration. Includes recurring cost projections.
Morse Code Converter
Encode plain text to Morse code and decode Morse code back to text. Supports dots, dashes and spaces.
Mortgage Calculator
Calculate monthly mortgage payments with amortization table, principal vs interest breakdown, LTV ratio, and optional PMI estimate.
Net Worth Calculator
Track assets and liabilities to calculate total net worth. Categorised inputs for cash, investments, real estate, vehicles, and various debt types.
Number Base Converter
Convert numbers between binary, octal, decimal, and hexadecimal with live cross-conversion.
Pace Calculator
Running, walking, or cycling pace calculator. Find pace from distance and time, find finish time from pace and distance, or find distance from pace and time. Supports km and miles.
Percentage Calculator
An interactive percentage calculator with three modes: find percentage of a number, find what percentage one number is of another, and calculate percentage change between two values.
Price Calculator
Interactive SaaS pricing calculator with sliders, toggle switches, checkbox add-ons, and live price calculation. Supports monthly/annual billing and custom formulas.
Recipe Scaler
Scale recipe ingredient quantities up or down by adjusting the number of servings. Add, edit and remove ingredients with a live WYSIWYG preview.
Retirement Calculator
Project retirement savings based on current age, target retirement age, monthly contributions, and expected investment returns. Shows inflation-adjusted projections with a visual breakdown.
ROI Calculator
Calculate return on investment with net profit, ROI %, payback period, and annualized return.
Roman Numeral Converter
Convert integers to Roman numerals and Roman numerals back to integers. Supports 1–3999.
Salary Calculator
Calculate take-home pay after federal/state taxes, Social Security, Medicare and retirement contributions.
Savings Calculator
An interactive compound interest savings calculator. Enter initial deposit, monthly contribution, annual interest rate, and years to see total savings, interest earned, and a year-by-year growth breakdown.
Scientific Calculator
A fully functional scientific calculator with standard arithmetic, trigonometric, logarithmic, and power functions, memory storage, and history log.
Sleep Calculator
Calculate optimal sleep and wake times based on 90-minute REM sleep cycles. Find when to sleep or when to wake up to feel fully rested.
Speed / Distance / Time Calculator
Solve any part of the Speed / Distance / Time triangle. Enter two values to calculate the third, with unit conversion between km/h, mph, m/s and more.
Split Bill Calculator
Calculate how much each person owes when splitting a bill with tip among a group.
Statistics Calculator
Enter a dataset and instantly compute descriptive statistics: mean, median, mode, range, variance, standard deviation, quartiles, and more.
Tax Calculator
Calculate sales tax, VAT, or estimate income tax brackets. Supports before-tax and after-tax price calculations with customizable tax rates and display options.
Time Duration Calculator
Add or subtract time durations in hours, minutes and seconds. Shows result broken down into multiple units.
Time Zone Converter
Convert a specific time across multiple time zones with a live interactive display.
Tip Calculator
Interactive bill, tip and split calculator. Enter the bill amount, choose a tip percentage with quick preset buttons, split by number of people, and instantly see total and per-person amounts.
Unit Converter
Interactive unit conversion tool supporting length, weight, temperature, volume, area, and speed. Users can switch categories, enter a value, and instantly see the converted result.
Water Intake Calculator
Calculate recommended daily water intake based on body weight, activity level and climate.