# KerfCalc

> Woodworking calculators that speak fractions. Offline, no ads, one-time unlock.

Canonical page: [https://chrome-stats.com/d/com.dq.kerfcalc](https://chrome-stats.com/d/com.dq.kerfcalc)

## Overview

- **ID:** `com.dq.kerfcalc`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** Deakyu Lee
- **Category:** TOOLS
- **Downloads:** 6
- **Version:** 1.0.0
- **Last updated:** 2026-08-21
- **First published:** 2026-08-20
- **Publisher country:** US
- **Size:** 3.25 MB
- **Data as of:** 2026-10-13
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.dq.kerfcalc)
- **Privacy policy:** [https://deakyulee.github.io/KerfCalc-privacy-policy/privacy-policy.html](https://deakyulee.github.io/KerfCalc-privacy-policy/privacy-policy.html)

## Description

KerfCalc is a set of woodworking calculators for the weekend workshop. Clean, fast, and built for the way woodworkers actually measure: in fractions.<br><br>No ads. No accounts. No subscription. Works with no signal at all.<br><br>BUILT FOR FRACTIONS<br><br>Type 1-3/4 the way you&#39;d say it. A custom keypad puts the fraction keys where your thumb already is, with shortcuts for the sixteenths and eighths you use constantly. Every calculation stays exact — no decimal drift, no 0.749999 where 3/4 belongs.<br><br>Switch the whole app to millimetres whenever you want, and it remembers.<br><br>FREE TOOLS<br><br>• Converter — fractions, decimals and millimetres, three ways<br>• Board feet — with a running tally and a cost estimate at your price per board foot<br>• Shelf spacing — even divider positions, marked from one end so errors can&#39;t accumulate<br>• Screws &amp; pilot holes — the pilot and countersink size for every screw gauge, by wood hardness<br><br>UNLOCK EVERYTHING — ONE PAYMENT<br><br>• Cut list optimizer — for boards and for sheet goods. Counts the blade.<br>• Saved cut lists — name a job and come back to it<br>• Board inventory — what&#39;s actually in your rack, with total board feet<br>• Stain &amp; finish — how much to buy, coats and waste buffer included<br>• Joinery reference — dovetail slopes with angles, box joints, proportion rules<br>• Golden ratio — harmonious proportions from a single dimension<br><br>IT COUNTS THE KERF<br><br>Four 24-inch pieces from a 96-inch board sounds like it fits. It doesn&#39;t — three cuts at 1/8&quot; each eat 3/8&quot;, and the fourth piece comes up short. KerfCalc plans around the blade, for boards and for full sheets, and shows you the layout.<br><br>IT KNOWS A 2x4 ISN&#39;T 2x4<br><br>Tap a nominal size and you get the real one: 1-1/2 x 3-1/2. Getting that wrong is the fastest way to build a carcass an inch off.<br><br>HONEST NUMBERS<br><br>When a value can&#39;t be marked on a tape, KerfCalc says so rather than pretending. When there are two right answers — what the lumberyard charges versus what you can actually cut — it gives you both.<br><br>Everything stays on your device. Nothing is collected, and nothing is sent anywhere.

## Rankings

- #3,065,983 — Overall

## Permissions and access

### Permissions

- `android.permission.ACCESS_NETWORK_STATE`
- `android.permission.INTERNET`
- `com.android.vending.BILLING`
- `com.android.vending.CHECK_LICENSE`
- `com.dq.kerfcalc.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`

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Source: [Chrome-Stats](https://chrome-stats.com/d/com.dq.kerfcalc)