BEng Civil Engineering; 8 years in project management.

Marcus Laurent

Contributor, Construction & Everyday Life

0 calculators 0 articles Member since Jun 2026

About

Marcus focuses on the "practical math" calculators: home projects, construction, fuel, and travel. His goal is simple — give the reader a number they can actually use on site or on the road in under 30 seconds.

Before writing full-time, he spent eight years in infrastructure and residential construction project management.

Areas of expertise

Construction math Home projects Travel planning Fuel economy

Education & credentials

BEng Civil Engineering — Polytechnique Montréal

Everyday Life

Pool Heater BTU Sizing Calculator

Estimate the BTU/h heater output required to raise a swimming pool from its current to a target temperature within a des...

basic

17,914 4.0 1 min

Finance / Budgeting

Monthly Water Bill Estimator

Estimate your monthly residential water bill from the number of gallons used per day, the per-thousand-gallons unit rate...

basic

18,798 4.4 1 min

Food / Drinks

Espresso Brew Ratio Calculator

Compute the espresso shot yield from a given dry coffee dose and target brew ratio (e.g. 1:2 = double, 1:3 = lungo). Rep...

basic

18,821 4.7 1 min

Everyday Life

Number of Steps to Calories Burned Calculator

Estimates calories burned from step count and body weight. Uses the general rule that a 70 kg person burns approximately...

basic

24,761 4.7 1 min

Construction / Materials

Carpet Calculator

Compute the square footage of a rectangular room and the total cost to carpet it at a given price per square foot or per...

basic

18,841 4.2 1 min

Sports

Swim Distance per Stroke (DPS) Calculator

Compute your distance-per-stroke (DPS) and stroke rate from the pool length, the number of strokes you take per length,...

basic

17,332 4.5 1 min

Everyday Life

Plant Watering Frequency by Pot Size Calculator

Estimate days between watering for a potted houseplant from the pot diameter (larger pots dry out more slowly) and the s...

basic

9,066 4.3 1 min

Everyday Life

Electricity Bill from Appliance Usage Calculator

Calculates daily and monthly energy: kWh = power(W) × hours/day / 1000. Monthly cost = kWh × days × unit_price. Useful f...

basic

5,918 4.6 1 min

Physics

Conveyor Belt Motor Torque & Drive Calculator

Calculates conveyor belt drive power from belt tension, belt speed, and system efficiency.

basic

12,722 3.8 1 min

Physics

Damped Harmonic Oscillator Amplitude Decay Calculator

Compute the amplitude of a lightly damped harmonic oscillator (e.g. a pendulum in air, an RLC circuit) at time t. Decay...

basic

17,993 4.4 1 min

Sports

Basketball True Shooting Percentage Calculator

Compute true shooting percentage — the most accurate single-number measure of scoring efficiency that accounts for 2-poi...

basic

12,223 4.2 1 min

Sports

American Football QB Passer Rating Calculator

Calculates the official NFL passer rating (0–158.3 scale) from completions, attempts, passing yards, touchdowns, and int...

basic

14,028 4.0 1 min

Showing 301 to 312 of 359 results

guide Conversions

Unit Conversion Without Typos: A Field Guide

Most unit-conversion mistakes are dumb mistakes — swapped factors, dropped decimals, wrong direction. A short guide to not making them.

Marcus Laurent

Mar 10, 2026 3 min

tutorial Fitness

Running Pace: How to Read Splits Without Getting Lost

Pace, splits, and goal times talk about the same thing from three different angles. A short guide to keeping them straight mid-race.

Marcus Laurent

Jan 30, 2026 3 min

Calcify

Browse categories

Marcus Laurent

Pool Heater BTU Sizing Calculator

Monthly Water Bill Estimator

Espresso Brew Ratio Calculator

Number of Steps to Calories Burned Calculator

Carpet Calculator

Swim Distance per Stroke (DPS) Calculator

Plant Watering Frequency by Pot Size Calculator

Electricity Bill from Appliance Usage Calculator

Conveyor Belt Motor Torque & Drive Calculator

Damped Harmonic Oscillator Amplitude Decay Calculator

Basketball True Shooting Percentage Calculator

American Football QB Passer Rating Calculator

Unit Conversion Without Typos: A Field Guide

Running Pace: How to Read Splits Without Getting Lost