ToolForge

ToolForge

Automotive

Tire Size Calculator

Compare tire diameters and width.

Horsepower Calculator

Estimate HP from 1/4 mile ET and weight.

Stopping Distance Calculator

Estimate braking distance.

Car Affordability Calculator

How much car can you afford?

Oil Change Calculator

Estimate next service date.

Trip Cost Calculator

Calculate gas cost for a specific trip.

Cooking

Pizza Dough Calculator

Calculate flour, water, and yeast for perfect pizza.

Coffee Ratio Calculator

Perfect water-to-coffee ratios for brewing.

Meat Thaw Calculator

Estimate defrosting time for meat.

Turkey Cooking Calculator

Calculate roasting time for turkey.

Cake Pan Converter

Adjust recipe volume for different pans.

BBQ Party Calculator

Estimate meat and drinks for guests.

Education

GPA Calculator

Calculate your semester GPA.

Weighted Grade Calculator

Calculate grade based on weighted categories.

Final Grade Calculator

What do you need on the final?

Reading Time Calculator

Estimate time to read a text.

Word Count Converter

Estimate pages from word count.

Scientific Notation Converter

Convert numbers to E-notation.

Electrical

Voltage Drop Calculator

Estimate voltage loss over distance.

Watts to Amps Calculator

Convert Watts to Amps.

Ohm's Law Calculator

Calculate Voltage from I and R.

Battery Capacity Calculator

Convert mAh to Wh.

LED Resistor Calculator

Calculate resistor needed for LED.

Everyday & Tech

Electricity Cost Calculator

Calculate cost of running an appliance.

EV Charging Cost Calculator

Estimate the cost to charge an Electric Vehicle.

Data Transfer Calculator

Estimate time to transfer files.

Bandwidth Calculator

Calculate total monthly data usage.

Exact Age Calculator

Calculate age in years and days.

Aspect Ratio Calculator

Calculate new dimensions while maintaining aspect ratio.

Finance

Investment ROI Calculator

Calculate the Return on Investment percentage.

Simple Mortgage Calculator

Estimate monthly mortgage payments.

Auto Loan Calculator

Calculate monthly car payments.

Fuel Cost Calculator

Estimate trip fuel cost.

Salary to Hourly Calculator

Convert annual salary to hourly wage.

Discount Calculator

Calculate sale price after discount.

Gaming

eDPI Calculator

Calculate Effective DPI for gaming.

K/D Ratio Calculator

Calculate Kill/Death ratio.

Win Rate Calculator

Calculate win percentage.

PPI Calculator

Calculate monitor pixel density.

Monitor Dimensions Calculator

Calculate width and height from diagonal.

Health & Fitness

BMI Calculator

Calculate Body Mass Index.

Calorie Deficit Calculator

Estimate daily calories for weight loss.

Daily Water Intake Calculator

Estimate recommended daily water intake.

One Rep Max Calculator

Estimate your 1RM lifting capability.

Navy Body Fat Calculator

Estimate body fat percentage using tape measurements.

Lean Body Mass Calculator

Calculate how much of your weight is not fat.

Home & Construction

Carpet Cost Calculator

Calculate how much it costs to carpet a room.

Interior Paint Calculator

Estimate how many gallons of paint you need for a room.

Concrete Slab Calculator

Calculate concrete volume and bags needed for a slab.

Wallpaper Calculator

Estimate rolls of wallpaper needed.

Tile Calculator

Calculate tiles needed for a floor or wall.

Mulch Calculator

Calculate cubic yards and bags of mulch.

Marketing

ROAS Calculator

Return on Ad Spend.

CPM Calculator

Cost per 1,000 impressions.

CPC Calculator

Cost Per Click.

CTR Calculator

Click Through Rate percentage.

Email ROI Calculator

Return on Investment for Email.

Pets

Chocolate Toxicity Calculator

Estimate danger of chocolate ingestion for dogs.

Dog to Human Age Calculator

Convert dog years to human years accurately.

Cat to Human Age Calculator

Calculate your cat's age in human years.

Dog Food Calculator

Calculate daily calories for your dog.

Aquarium Volume Calculator

Calculate gallons from tank dimensions.

Photography

Time Lapse Calculator

Calculate shooting interval and clip length.

Golden Ratio Calculator

Find the divine proportion points.

Exposure Value (EV) Calculator

Calculate EV from exposure settings.

Focal Length Multiplier

Equivalent focal length on crop sensors.

ND Filter Calculator

Calculate adjusted shutter speed with ND filters.

Video Storage Calculator

Estimate GB needed for recording.

Why Choose ToolForge?

ToolForge is your premier destination for accurate, free, and privacy-focused online calculators. We offer a comprehensive suite of tools across Finance, Health & Fitness, Home & Construction, Automotive, Cooking, Education, and Photography.

100% Client-Side Privacy

Unlike many other calculator sites that send your data to a server, ToolForge runs entirely in your browser. This means your financial data, health metrics, and personal inputs never leave your device. We believe privacy is a fundamental right, not an option.

Verified Accuracy

Our calculators are built using industry-standard formulas used by professionals in every field. From Mortgage payments and Debt Payoff plans to Tire Sizing and Turkey Cooking times, you can trust that the numbers you see are precise and reliable.

Totally Free & Fast

No subscriptions, no sign-ups, and no waiting. Our tools load instantly and provide results in milliseconds. We are committed to keeping ToolForge free and accessible to everyone.