Cost-Per-Shave Calculator

Cartridge Razors vs. OneBlade


Your shaving routine

5

Most daily shavers land between 5–7. Some shave twice a day.

3 years

A OneBlade razor is built to last a lifetime — the comparison changes drastically over time.

Assumptions — averages (but adjustable)
Cartridge razor (handle) $
Cartridge price (per cartridge) $
Shaves per cartridge
OneBlade razor
Blade format

All assumptions editable. Defaults reflect retail pricing as of May 2026.

The math

Over 3 years, you'd save

$0

switching to OneBlade

Cartridge

Handle
$0
Cartridges
$0
Total
$0
Cost per shave
$0

OneBlade

Razor
$0
Blades
$0
Total
$0
Cost per shave
$0

How We Got These Numbers


CARTRIDGE COSTS
The average retail price for a 5-blade premium cartridge razor (Gillette Fusion5, Schick Hydro 5) bought 8-at-a-time is ~$4.50. Buy them one-pack-at-a-time at the drugstore and the real number is closer to $6.

CARTRIDGES LAST ~6 SHAVES
That's the manufacturer estimate. Most dermatologists recommend swapping every 5–7 shaves or once the glide strip wears down. Heavier beards burn through them faster.

OUR HiCarbon BLADES
We sell our HiCarbon blades for $39.95 for 100 blades = $0.40 each. Each blade is engineered to last roughly 5 shaves.

COVERAGE IMPACT
A bigger shave area wears blades faster. We adjust blade life downward proportionally — full face uses 1× blades, body shavers (head, legs or even thick beard) uses ~1.4×.