How these concealed handgun licenses combine, for different net yields

An OHIO Concealed Handgun License provides...

OH (of course)

PLUS...

States with mutual reciprocity with Ohio
AK, AR, AZ, DE, FL, ID, KY, MI, MO, NC, OK, SC, TN, UT, VA, WA, WV, WY

PLUS...

Additional states not already listed, that honor either the Ohio license specifically, or that of "any" state
IN, KS, MN, MT, NE, NM, NV, SD

PLUS...

VT – No license needed

This results in the following total list of states in which you can legally carry a concealed handgun...
AK, AR, AZ, DE, FL, ID, IN, KS, KY, MI, MN, MO, MT, NC, NE, NM, NV, OH, OK, SC, SD, TN, UT, VA, VT, WA, WV, WY
(28 States, Total, or 56% of the country)

Add just a PENNSYLVANIA non-resident license to your Ohio CHL, and the following additional states become available to an Ohio resident...

PA (of course)

PLUS...

States not already listed under Ohio, which honor a PA non-resident license
GA, LA, ND, TX

This results in the following total list of states in which you can legally carry a concealed handgun...
AK, AR, AZ, DE, FL, GA, ID, IN, KS, KY, LA, MI, MN, MO, MT, NC, ND, NE, NM, NV, OH, OK, PA, SC, SD, TN, TX, UT, VA, VT, WA, WV, WY
(33 States, Total, or 66% of the country)

COST: $26 (Cost ratio of $5.20 per state, for the 5 additional states gained.)

Including the Ohio license, the average cost per year to maintain the PA license is $16.20 for both licenses. The normalized cost, per year, for each state you can then legally carry in (32), is $1.45 per state.

Or...
Add just a NEW HAMPSHIRE non-resident license to your Ohio CHL, and the following additional states become available to an Ohio resident...

NH (of course)

PLUS...

States not already listed under Ohio, which honor a NH non-resident license
AL, GA, LA, MS, PA

This results in the following total list of states in which you can legally carry a concealed handgun...
AK, AL, AR, AZ, DE, FL, GA, ID, IN, KS, KY, LA, MI, MN, MO, MS, MT, NC, NE, NH, NM, NV, OH, OK, PA, SC, SD, TN, UT, VA, VT, WA, WV, WY
(34 States, Total or 68% of the country)

COST: $100 (Cost ratio of $16.66 per state, for the 6 additional states gained.)

Including the Ohio license, the average cost per year to maintain the NH license is $36.00 for both licenses. The normalized cost, per year, for each state you can then legally carry in (33), is $4.58 per state.

Or...
Add just a FLORIDA non-resident license, and the following additional states become available to an Ohio resident...

FL (Note: Because Florida itself is already covered via reciprocity with Ohio, we don't really count it here as an "additional" state)...

PLUS...

States not already listed under Ohio, which honor a FL non-resident license
AL, GA, LA, MS, PA, TX

This results in the following total list of states in which you can legally carry a concealed handgun...
AL, AK, AR, AZ, DE, FL, GA, ID, IN, KS, KY, LA, MI, MN, MO, MS, MT, NC, NE, NM, NV, OH, OK, PA, SC, SD, TN, TX, UT, VA, VT, WA, WV, WY
(34 States, Total, or 68% of the country)

COST: $117 (Cost ratio of $19.50 per state, for the 6 additional states gained.)
(NOTE: As of July 1st, 2009, every state offered by the Florida license is now available through the cheaper combined New Hampshire and Pennsylvania permits – plus, you gain NH and ND in the deal.)

Including the Ohio license, the average cost per year to maintain the FL license is $17.71 for both licenses. The normalized cost, per year, for each state you can then legally carry in (34), is $2.80 per state.

Or...
Add just a MAINE non-resident license to your Ohio CHL, and the following additional states become available to an Ohio resident...

ME (of course)
Although the Maine non-resident license is valid in 13 states, the states other than Maine are already covered by the Ohio license.

This results in the following total list of states in which you can legally carry a concealed handgun...
AK, AR, AZ, DE, FL, ID, IN, KS, KY, ME, MI, MN, MO, MT, NC, NE, NM, NV, OH, OK, SC, SD, TN, UT, VA, VT, WA, WV, WY
(29 States, Total, or 58% of the country)

COST: $60 (Cost ratio of $60.00 per state, for the 1 additional state gained.)

Including the Ohio license, the average cost per year to maintain the ME license is $26.00 for both licenses. The normalized cost, per year, for each state you can then legally carry in (28), is $15.41 per state.

Or...
Add just a CONNECTICUT non-resident license to your Ohio CHL, and the following additional states become available to an Ohio resident...

CT (of course)

PLUS...
States not already listed under Ohio, which honor a CT non-resident license
TX

This results in the following total list of states in which you can legally carry a concealed handgun...
AK, AR, AZ, DE, FL, ID, IN, KS, KY, ME, MI, MN, MO, MT, NC, NE, NM, NV, OH, OK, SC, SD, TN, TX, UT, VA, VT, WA, WV, WY
(30 States, Total, or 60% of the country)

COST: $89.25 ($70 + $19.25 b/g check) (Cost ratio of $44.63 per state, for the 2 additional states gained.)

Including the Ohio license, the average cost per year to maintain the CT license is $21.85 for both licenses. The normalized cost, per year, for each state you can then legally carry in (29), is $5.84 per state.

Or...
For maximum yield, add the COMBINATION of the PENNSYLVANIA, NEW HAMPSHIRE, MAINE and CONNECTICUT non-resident licenses to your Ohio CHL, and the following additional states become available to an Ohio resident...

PA, NH, ME, CT

PLUS...

States not already listed under Ohio, which come with the COMBINED non-resident licenses, above
AL, GA, LA, MS, ND, TX

This results in the following total list of states in which you can legally carry a concealed handgun...
AK, AL, AR, AZ, CT, DE, FL, GA, ID, IN, KS, KY, LA, MI, ME, MN, MO, MS, MT, NC, ND, NE, NH, NM, NV, OH, OK, PA, SC, SD, TN, TX, UT, VA, VT, WA, WV, WY
(38 States, Total, or 76% of the country)

COST: $275.25 ($26 + $100 + $60 + $89.25, for a cost ratio of $27.53 per state, for the 10 additional states gained.)

Note that the Florida license would not be necessary in this "super pack" of licenses, as every state it offers is available with far less paperwork, and with a much quicker turn-around between application and issuance of the licenses, via New Hampshire and Pennsylvania.

Since each license in the combination differs in the number of years for which it is valid, normalizing to a "cost per state, per year" standard shows how much it costs per year, for each state you can carry in, under the above combination of licenses. (Changes in fees, years valid, or honored states, will, of course, affect this.)

Including the Ohio license, the average cost per year to maintain the combination of the PA, NH, ME, and CT licenses is $78.56. The normalized cost, per year, per state you can legally carry in, is $7.17 per state.