Does KDF Tech work with clients in the USA, Canada, and UK?

Yes. KDF Tech delivers remote custom software, mobile apps, Shopify stores, POS/ERP, and marketplace customization for clients in the USA, Canada, UK, Pakistan, and worldwide.

Does KDF Tech develop mobile apps for Android and iOS?

Yes. We build Flutter Android and iOS apps and publish them on Google Play and the Apple App Store. Multiple customer, seller, and rider apps are already live under our KDF tech Play Store developer account.

Do you customize 6Valley and 6amMart?

Yes. We fully customize and redesign 6Valley and 6amMart — UI/UX, admin panels, Flutter apps, payments, courier integrations, and production deployment. Live examples include Khan Dry Fruits, KPK Collection, and KDF Mart.

Can you design and build a Shopify store?

Yes. We design Shopify storefronts with custom theme UI, banners, category merchandising, and conversion blocks. See our live work at khandryfruit.com.

Do you offer free online tools?

Yes. KDF Tech publishes 200+ free browser tools — calculators, converters, PDF and image utilities, text tools, and generators — at kdftek.com/tools/ for users in the USA, Canada, UK, Australia, Europe, and worldwide.

How can I contact KDF Tech for a project?

Contact us on WhatsApp at +92 345 0144865 or email kdfmarts@gmail.com. You can also submit the project inquiry form on kdftek.com.

Free · No signup · USA · Canada · UK · Worldwide · Updated 2026-09-15

Sales Tax Calculator

Answer: US sales tax adds tax = price × (rate ÷ 100) to get total, or reverse-calculates pre-tax price = total ÷ (1 + rate/100) when tax is included in the sticker price.

Free sales tax calculator for the USA. Enter an amount and tax rate to get tax and total.

Pre-tax amountTax rate %

State rates are approximate base rates — cities may add local tax.

Pre-tax$49.99
Tax$3.62
Total$53.61

How to use Sales Tax Calculator

Choose Add tax to a price or Remove tax from a total.
Enter the amount and state/local tax rate (e.g. 8.875% for NYC).
Read pre-tax amount, tax portion, and final total.

Key facts for search & AI

100% free — no account required.
Runs in your browser — inputs are not uploaded for these calculations.
Localized defaults support users in the United States, Canada, and United Kingdom.
Published by KDF Tech — software, apps, Shopify, and POS systems.

Need a custom product instead? Start a project or WhatsApp +92 345 0144865.

FAQ — answers Google & AI can cite

What is Sales Tax Calculator?

US sales tax adds tax = price × (rate ÷ 100) to get total, or reverse-calculates pre-tax price = total ÷ (1 + rate/100) when tax is included in the sticker price.

Can I calculate US sales tax?

Yes. Enter your rate or pick an approximate state base rate, then add or remove tax from a price.

Are state rates exact?

Presets are approximate base rates. Local city taxes may apply — enter your exact combined rate for precision.

Can I remove tax from a total?

Yes. Use Remove tax mode to back out the pre-tax price.