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

Statistics

Minimum Sample Size for Survey Accuracy Calculator

Calculates the minimum sample size needed for a survey or proportion estimate at a specified confidence level and margin...

basic

16,874 4.7 1 min

Statistics

Kolmogorov-Smirnov One-Sample Test Calculator

Calculates the one-sample Kolmogorov-Smirnov test statistic D from the maximum deviation between empirical and theoretic...

basic

7,864 4.5 1 min

Everyday Life

Paint Thinner Mix Ratio Calculator

Compute how much thinner to add to a paint base for a given thinner-to-paint ratio (commonly 10 % for spray-gun viscosit...

basic

8,182 3.9 1 min

Everyday Life

Wall Stud Count Calculator

Compute the number of wall studs required for a straight wall of given length and on-centre spacing, plus extras for doo...

basic

4,324 4.8 1 min

Sports

Standing Long Jump Leg Power Estimate Calculator

Estimates lower-body peak power in watts from standing broad jump distance and body mass using a simplified biomechanica...

basic

19,528 5.0 1 min

Construction / Materials

Asphalt Calculator

Estimate the tonnes of hot-mix asphalt needed to pave a rectangular area to a chosen thickness.

basic

1,487 5.0 1 min

Conversions / Mass

Mass Converter

Convert between grams, kilograms, pounds, ounces, and stones.

basic

14,029 3.8 1 min

Everyday Life

Slab Rebar Grid Calculator

Compute the total number of rebar lengths and the total linear footage required for an orthogonal grid in a concrete sla...

basic

20,101 4.2 1 min

Finance

Dividend Discount Model Intrinsic Value Calculator

Calculates the intrinsic value of a stock using the single-stage dividend discount model (Gordon Growth Model) from next...

basic

1,034 4.8 1 min

Statistics / Probability

Law of Total Probability from Conditional Probabilities Calculator

Calculates the total probability of event B using the law of total probability: P(B) = P(B|A₁)·P(A₁) + P(B|A₂)·P(A₂) + P...

basic

12,333 3.9 1 min

Everyday Life

Heating Degree Days Annual Fuel Estimate Calculator

Estimates annual heating fuel consumption from heating degree days, building heat loss coefficient UA, furnace efficienc...

basic

24,024 4.5 1 min

Sports

Poker 5-Card Hand Probability Calculator

Compute the exact probability of being dealt each common 5-card poker hand from a single 52-card deck, using combinatori...

basic

21,690 4.7 1 min

Showing 229 to 240 of 386 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

May 14, 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 24, 2026 3 min

Best Free Calculator

Browse categories

Marcus Laurent

Minimum Sample Size for Survey Accuracy Calculator

Kolmogorov-Smirnov One-Sample Test Calculator

Paint Thinner Mix Ratio Calculator

Wall Stud Count Calculator

Standing Long Jump Leg Power Estimate Calculator

Asphalt Calculator

Mass Converter

Slab Rebar Grid Calculator

Dividend Discount Model Intrinsic Value Calculator

Law of Total Probability from Conditional Probabilities Calculator

Heating Degree Days Annual Fuel Estimate Calculator

Poker 5-Card Hand Probability Calculator

Unit Conversion Without Typos: A Field Guide

Running Pace: How to Read Splits Without Getting Lost