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

Soil Truckload Calculator

Compute the number of dump-truck loads needed to haul a given volume of soil, given the truck capacity in cubic yards. S...

basic

4,989 4.2 1 min

Everyday Life

R-Value Heat Loss Calculator

Compute the steady-state heat-loss rate through a wall, ceiling, or floor section from its R-value, surface area, and te...

basic

11,406 5.0 1 min

Sports

Cricket Batting Average and Strike Rate Calculator

Compute a cricketer's batting average and strike rate from runs scored, balls faced, innings played and times dismissed...

basic

23,848 4.9 1 min

Sports / Running

Running Age-Grade Performance Factor Calculator

Calculates running age-grade performance percentage to compare times fairly across age groups using WMA age-grading fact...

basic

3,148 4.9 1 min

Sports

Tennis Serve Speed (mph) from Distance and Time Calculator

Compute the speed of a tennis serve from the (foot-traced) distance the ball travels between leaving the racquet and cro...

basic

20,732 4.3 1 min

Everyday Life

Wattage to Amps Converter Calculator

Convert an appliance's power rating (watts) to a current draw in amps at a given voltage and power factor: A = W / (V ·...

basic

14,192 4.3 1 min

Physics

Motor Locked-Rotor Starting Current Calculator

Estimates motor starting (locked-rotor) current from rated kW, voltage, full-load current, and starting current multipli...

basic

7,483 4.1 1 min

Everyday Life

Trailer Tongue-Weight from Trailer Weight (10-15% Rule) Calculator

Compute the recommended tongue weight (downward force on the hitch ball) for a conventional ball-coupler trailer: 10-15...

basic

354 4.1 1 min

Everyday Life

Soaker Hose Length for a Garden Bed Calculator

Compute the length of soaker hose needed to lay parallel runs across a rectangular garden bed at a chosen row spacing: l...

basic

522 4.5 1 min

Everyday Life

Paver-Base Sand Cubic-Yards from Area and Depth Calculator

Compute the cubic-yards and tons of sand bedding needed under a paver patio or walkway given the area and bedding depth....

basic

13,759 4.5 1 min

Food / Cooking

Recipe Scaling Calculator

Scale any recipe up or down by number of servings — every ingredient stays in the same proportion.

basic

8,206 4.1 1 min

Sports

Brzycki One-Rep Max (1RM) Calculator

Estimate the one-rep max for any compound lift from a sub-maximal weight × reps set using Matt Brzycki's classic formula...

basic

573 4.9 1 min

Showing 49 to 60 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

Soil Truckload Calculator

R-Value Heat Loss Calculator

Cricket Batting Average and Strike Rate Calculator

Running Age-Grade Performance Factor Calculator

Tennis Serve Speed (mph) from Distance and Time Calculator

Wattage to Amps Converter Calculator

Motor Locked-Rotor Starting Current Calculator

Trailer Tongue-Weight from Trailer Weight (10-15% Rule) Calculator

Soaker Hose Length for a Garden Bed Calculator

Paver-Base Sand Cubic-Yards from Area and Depth Calculator

Recipe Scaling Calculator

Brzycki One-Rep Max (1RM) Calculator

Unit Conversion Without Typos: A Field Guide

Running Pace: How to Read Splits Without Getting Lost