Finance

One Rep Max Calculator

Estimate your one-rep max (1RM) for any lift using weight lifted and number of reps perfor

Finance

BMR Calculator

Calculate your Basal Metabolic Rate (BMR) using the Mifflin-St Jeor equation for accurate

Finance

Protein Intake Calculator

Calculate your daily protein requirement based on body weight, activity level, and fitness

Finance

Calories Burned Swimming Calculator

Estimate calories burned during swimming based on stroke, duration, and body weight.

Chemistry

Molar Mass Calculator

Calculate the molar mass of common chemical elements and look up atomic weights instantly.

Unit Converter

Weight Converter

Convert between kilograms, pounds, ounces, grams, stones and more weight units instantly.

Pregnancy

Body Surface Area Calculator

Calculate body surface area (BSA) using height and weight with Mosteller and DuBois formul

Finance

Calorie Intake Calculator

Calculate your recommended daily calorie intake for weight loss, maintenance, or weight ga

Finance

Pregnancy Weight Gain Calculator

Calculate recommended total and weekly weight gain during pregnancy based on pre-pregnancy

Finance

Calorie Burned Calculator

Estimate calories burned during various exercises based on your weight, activity, and dura

Everyday

Unit Converter

Convert between common units of length, weight, temperature, and volume in one handy tool.

Pregnancy

Creatinine Clearance Calculator

Estimate kidney function (GFR) using the Cockcroft-Gault equation from age, weight, and se

Business

Shipping Cost Calculator

Estimate shipping costs based on package weight, dimensions and shipping zone.

Marine

Draft Survey Calculator

Complete draft survey calculator supporting initial, intermediate, and final surveys with

Finance

Pregnancy BMI Calculator

Calculate pre-pregnancy BMI and recommended weight gain range during pregnancy by trimeste

Finance

Intermittent Fasting Calculator

Calculate your eating window and fasting window start/end times for popular IF protocols l

Math

Grade Calculator

Calculate your overall course grade based on assignment scores and weights or find the gra

Marine

Volume to Weight Converter

Convert cargo volume to weight and vice versa using cargo density or stowage factor, for c

Marine

Average Speed Calculator

Calculate the true weighted average speed across multiple voyage legs in knots, kilometers

Marine

Maritime Unit Converter

Real-time conversion across multiple maritime categories including speed, length, pressure