---
title: "Parcel Girth & Size Checker: Length + Girth | Honey Parcels"
description: "Work out a parcel's girth and length plus girth, and check it against published size and weight limits for UPS, USPS and Royal Mail, or your own."
url: https://honeyparcels.shop/parcel-girth-calculator/
---

# Parcel girth & size checker

Will it go? Enter the parcel's sides and weight, pick a size limit or type your carrier's, and see what passes and by how much.

## Length and girth

The longest side is the length. Girth is the distance around the parcel at its thickest point, at right angles to the length: twice the width plus twice the height. Many carriers set their size limit on length and girth added together.

Length + girth = length + 2 × width + 2 × height

Example: a 60 × 12 × 10 inch box has a girth of 2 × 12 + 2 × 10 = 44 inches, so length plus girth is 104 inches, 4 inches inside a 108-inch limit.

### The published limits included

UPS small packages: up to 108 inches long, 165 inches in length plus girth and 150 lb. USPS: up to 108 inches in length plus girth for most domestic parcels (Ground Advantage up to 130 inches, at an oversized price above 108) and 70 lb. Royal Mail: small parcels up to 45 × 35 × 16 cm and 2 kg, medium parcels up to 61 × 46 × 46 cm and 20 kg. Edit any number to match your carrier's current rules.

## Sources

- UPS, [Package dimensions, size limits and weight guide](https://www.ups.com/us/en/support/shipping-support/shipping-dimensions-weight).
- USPS, [Parcel size, weight and fee standards](https://faq.usps.com/s/article/Parcel-Size-Weight-Fee-Standards).
- Royal Mail, [How to send small parcels](https://www.royalmail.com/sending/send-small-parcels) and its price guides for parcel sizes.

## Questions

**Which side is the length?**

Always the longest side, whichever way up the parcel travels. The checker sorts the sides for you, so type them in any order.

**What about a round tube?**

Its girth is the circumference, about 3.14 × the diameter. Entering the diameter as both other sides treats the tube as square, which overestimates the girth slightly, so a pass is safe.

**What if my parcel is just over?**

Carriers may refuse it, add an oversize charge or send it back. Check your carrier's rules for what happens before you post it.