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

Sports

Speedrun Pace Calculator

Project a speedrun final time from the current elapsed time and the percentage of the run already completed. Reports the...

basic

7,297 4.5 1 min

Food / Cooking

Cooking Conversion Calculator

Convert cups, tablespoons, teaspoons, and millilitres — with common ingredient-specific gram conversions.

basic

1,321 4.9 1 min

Everyday Life

Lawn Fertilizer N-P-K Application Rate Calculator

Calculates how many pounds of fertilizer product to apply per 1,000 ft² from the target nitrogen rate and the N percenta...

basic

23,440 4.4 1 min

Everyday Life

Wood Stain Coverage Area Calculator

Compute the gallons (and quarts) of wood stain needed for a deck or fence. Wood absorbs more stain than paint; typical c...

basic

703 4.7 1 min

Fitness / Running

Running Pace Calculator

Convert between pace, distance, and time for any run.

basic

16,311 4.2 1 min

Food / Baking

Baker's Percentage Calculator

Professional bread math — every ingredient is expressed as a percentage of the flour weight.

basic

11,951 4.8 1 min

Physics

Grey Body Emissivity Radiation Heat Transfer Calculator

Calculates thermal radiation power emitted by a grey body surface from its emissivity, area, and absolute temperature us...

basic

20,168 4.8 1 min

Sports

Race Time Predictor (Riegel)

Predict your time for a target race distance from a known time and distance using the Riegel formula T₂ = T₁ · (D₂ / D₁)...

basic

11,838 4.9 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

8,123 4.6 1 min

Everyday Life / Travel

Road Trip Fuel Cost Calculator

Calculates total fuel cost, gallons used, and cost per mile for a road trip from distance, fuel economy, and fuel price.

basic

3,379 4.8 1 min

Everyday Life

Retaining Wall Block Calculator

Compute the total number of segmental retaining-wall blocks needed for a given wall length, wall height, and block dimen...

basic

9,519 4.7 1 min

Food / Party Planning

Party Food Planning Calculator

Estimate how much food to prepare per major category (appetizers, main, sides, dessert) for a sit-down party, scaling wi...

basic

24,657 4.9 1 min

Showing 373 to 384 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

Speedrun Pace Calculator

Cooking Conversion Calculator

Lawn Fertilizer N-P-K Application Rate Calculator

Wood Stain Coverage Area Calculator

Running Pace Calculator

Baker's Percentage Calculator

Grey Body Emissivity Radiation Heat Transfer Calculator

Race Time Predictor (Riegel)

Monthly Water Bill Estimator

Road Trip Fuel Cost Calculator

Retaining Wall Block Calculator

Party Food Planning Calculator

Unit Conversion Without Typos: A Field Guide

Running Pace: How to Read Splits Without Getting Lost