About SatchelBag
What is SatchelBag?
SatchelBag is an independent, advertising-supported site built around six free bag tools and a small museum. There is no shop behind it, no brand, and no sponsored reviews — just calculators for the specific questions people run into when buying, carrying, or caring for a bag, and a Bags & Carriers Museum for anyone who wants to go deeper into the history and materials.
Who is it actually for?
Anyone with a concrete bag question that a product photo can’t answer: will a laptop fit inside a given bag, how many litres does a tote actually hold, will a strap sit at the hip or the waist, how often should full-grain leather be conditioned, or will everything on a packing list fit before you leave the house. That’s what the tools are for.
What tools does the site have?
Six, all free, each built around one specific question:
- Bag Capacity Calculator— turns a bag’s length, width, and height into its volume in litres and a size class, from clutch to weekender.
- Laptop Bag Fit Checker— checks whether a 13 to 17-inch laptop will clear a bag’s interior dimensions before you buy.
- Bag Cost-Per-Wear Calculator— divides a bag’s price by how often and how long you’ll carry it, to see its real cost per use.
- Crossbody Strap Length Guide— works out where a strap will sit on your body from your height and the strap length.
- Leather Care Scheduler— builds a conditioning and cleaning schedule from the leather type and how often you use the bag.
- What Fits In My Bag— totals the items you want to carry against a bag’s capacity to see if they’ll fit.
How do the tools actually work?
They’re calculators, not a database of pre-measured bags. The capacity tool multiplies the three dimensions you enter into a volume in litres and bins the result into familiar size classes. The fit checker compares a laptop’s screen size against a bag’s interior dimensions and reports the clearance. The cost-per-wear tool is arithmetic — price divided by projected uses over time. The strap guide converts your height and a strap length into a drop measurement. The leather scheduler maps leather type and use frequency to a care cadence, with separate notes for full-grain, suede, nubuck, patent, and faux. The packing planner adds up the volume of the items you list against a bag’s stated capacity.
Where do the numbers come from?
The dimensional tools — capacity, fit, strap length, packing — are unit math on whatever measurements you type in; there is no hidden database of specific bag models behind them. The leather care intervals and material notes reflect commonly published care guidance for each material rather than any manufacturer’s own instructions or in-house lab testing.
Are the tools free?
Yes. No account, no paywall, and no email required to use any of them. The site is paid for by display advertising, not by access to the tools.
Is any of this professional advice?
No. Every result is a general estimate based on the numbers you enter, not a guarantee about a specific bag or leather. For an expensive purchase or an unfamiliar material, check the manufacturer’s own spec sheet or care instructions before relying on a result here.
What’s the Bags & Carriers Museum?
A separate part of the site, kept out of search results on purpose, that walks through everyday bag types, the materials and craft behind them, and the carriers of history and culture. Every entry, image, and fact in it is drawn from Wikipedia and Wikimedia Commons, not written in-house.
Is SatchelBag affiliated with any bag brand?
No. SatchelBag is not affiliated with, endorsed by, or connected to any bag manufacturer, retailer, or materials standard it discusses.
Something to say, or a tool acting up?
Get in touch— details are on the Contact page.